Charles River Wheelers

WheelPeople: Your Bike Club Newsletter

Stay up-to-date with the latest Charles River Wheelers news, events, and rides. Our WheelPeople newsletter is tailored for current and prospective members seeking bike-related updates, expert advice, and cycling inspiration.

WheelPeople offers club and member news as well as informational content from third parties. Views expressed in third-party content belong to the author(s) and not CRW. Consult a professional for advice on health, legal matters, or finance. CRW does not endorse linked content or products. Content published in WheelPeople is owned by Charles River Wheelers (CRW) unless otherwise stated. 

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WheelPeople Articles

  • 2024-02-28 12:31 PM | Anonymous

    By Eli Post

    March offers intermediate warm days

    And if you ride, you get praise 


    It may be before the season 

    But it's not for us to reason

    The need to be out and play

    Alongside a snowy sleigh 

    A short ride on a warm day will be ok

    You might even shout out "Hooray!"


    As you conquer the open road 

    And have a story that can be told 

    We strive to come up with advice we can provide 

    But we hope you enjoy your ride 


    And credit us for this poem, so

    The biking world will show 

    That we are in the know 

    When you reach a new plateau 


    We will have more to say in April

    When we plan to be more wakeful 


  • 2024-02-28 12:27 PM | Anonymous

    By Jerry Skurla

    The days are getting longer and temps are getting warmer, but Spring is still a month or two away.  Start your Spring Cleaning early and look through your basement, garage, and shed for items for CRW's 3rd Annual Spring Swap Meet & Rides on Sunday, May 5th!

    Just use the checklist list below to identify stuff you no longer need or want:

    • Complete bikes, frames, wheels, and tires 
    • Components, parts, accessories, and tools
    • Car racks, travel cases, bike racks, and bike bags
    • Clothing including shoes, jerseys, hats, and jackets

    Like last year, there will be "free stuff" tables to give away items, and find free gems for yourself. You can also sell your stuff and buy from others. Everyone wins!

      

    There will be two rides in the morning, followed by the Swap Meet in the afternoon, so it's also a great opportunity to get in early season miles.  The location is Harrington Elementary School, 328 Lowell St, Lexington, MA.

    Please write comments below with any questions.



  • 2024-02-28 12:27 PM | Anonymous

    By Amy Juodawlkis

    On February 4th, the CRW Women's/Nonbinary Program hosted a winter hiking event at the Middlesex Fells Reservation. We met at Medford High School and began with a tailgate including coffee, munchkins, and other treats. This gave everyone a chance to warm up, fuel up, and socialize before our hike.

    At 9 am, our group of 27 members and guests set out on a beautiful 4.1- mile hike on gently rolling fire roads. The peaceful scenery was the perfect backdrop for great conversations along the trail. Those with binoculars were rewarded with water bird sightings at our photo-op stop by the reservoir.

    Everyone had a fantastic time connecting in nature. The Women's/Nonbinary Program aims to continue offering seasonal events open to our women, non-binary, and female-identifying membership. Consider joining us for fresh air and friendship on our next adventure!



  • 2024-02-28 12:15 PM | Anonymous

    By Nancy Clark

    Most nutrition advice is targeted to the average American: Don't drink fruit juice. Eat less sugar. Stay away from pasta. Take the saltshaker off the table. Does this same advice pertain to athletes? Sometimes, yes. Sometimes, no.

    Physiologically speaking, the body of a healthy, fit athlete differs significantly from the body of the unfit "average American." For example, compared to an unfit per-son, an athlete's muscles readily take up sugar (glucose) from the blood; this means "sugar spikes" are less of a concern.

    This article highlights the confusion stemming from nutrition advice that does not always apply to the needs of athletes. One size does not fit all!

    I've stopped eating (fattening) potato, pasta & starchy carbs with dinner. I eat a pile of veggies, instead." 

    To start, starchy carbs are not inherently fattening. Excess calories of any kind of food are fattening. Eating a "pile of veggies" for "healthier" carbs is expensive, time consuming, likely to result in a very high fiber diet (leading to undesired pit stops), and unlikely to optimally refuel muscles.  

    Carb-dense (sweet) potato, (brown) rice, (whole wheat) bread, and other starchy carbs/grains optimize fueling the muscles of athletes who train hard. A strong carb intake can prevent "dead legs" and disappointing workouts. 

    The harder you exercise, the greater your needs for starches/grains. At least 1/3 to 1/2 your plate can be starches (at least 200 calories from starch/meal ((2.5-4.0+ gram carb/lb body weight per day).  

    I enjoy recovering from my workouts with a 40-gram-protein shake.

    While a bit of post-workout protein can help build and repair muscles, you actually want three times more carbs than protein to refuel depleted muscles. An effective dose of post-exercise protein is ~0.12-0.15 grams protein per pound body weight (0.25 -0.3g pro/kg). For 120- to 170-pound athletes, that's about 15 to 20 grams protein, the equivalent of 2 to 3 eggs in a recovery breakfast, or 16-ounces chocolate milk.  If you really want to use protein powder, blenderize it with carb-rich chocolate milk +banana or  juice + frozen fruits.      

    I don't drink orange juice anymore. Too much sugar.

    For busy athletes who train hard, have limited time to eat, and consume too little fruit, 100% juice is exactly what their sports diet needs! While most calories in juice (and fruit) are from sugar; abundant nutrients come along with that sugar. Eight ounces OJ provides 100% of the daily need for vitamin C, replaces potassium lost in sweat, and offers folic acid (critical for women who might become  pregnant). By choosing a variety of colorful juices (purple grape, red cranberry, yellow pineapple, blue blueberry) athletes can consume a variety of health-promoting compounds that fight inflammation. If you've stopped drinking OJ, at least eat an orange, berries, or other fruit...   
     
    I've stopped salting my food. 

    When athletes sweat, they lose sodium, a part of salt. The standard American diet contains far more sodium than most people need, so most sweaty athletes can easily consume abundant sodium. That said, if you have a post-workout layer of salt on your skin and you are craving salt, sprinkle some on your food! Salt cravings indicate your body needs salt.

    I use electrolyte tablets after long workouts.

    Electrolytes (more commonly called minerals: calcium, sodium, potassium, magnesium) are abundant in food. Chances are you will consume more electrolytes in your recovery meal than you will get from electrolyte tablets.

    Sodium is the key electrolyte of concern. Before taking electrolyte supplements, read the Nutrition Facts on food labels to educate yourself about the sodium in the foods you commonly eat. You might be shocked to learn the 270 mg sodium in a 20-oz bottle Gatorade is less than the 450 mg in a Thomas' plain bagel, the 470 mg in a 1/2 cup Prego pasta sauce, 600 mg in a sprinkling (1/4 tsp) of salt on your pre- or post-exercise meal, or the 850 mg in a cup of chicken broth.

    I crave sugar. I'm trying to not eat it...

    Sugar cravings commonly happen when athletes get too hungry, when they fail to eat enough calories at breakfast and lunch. By afternoon, their gas tank is empty, and their body is shouting for quick energy: sugar! To curb sugar-cravings (and easily reduce your sugar intake), simply eat more breakfast and lunch. If you stop eating breakfast just because the food is gone or because you think you should, think again. Stop eating because you feel content and satisfied.

    Your body can tell you how much food it requires IF you listen to it! If you don't trust your body to feel fullness, please meet with a sports dietitian (RD CSSD). This nutrition professional can estimate energy needs and design a food plan that distributes adequate food throughout the day, thereby curbing hunger and urges for sugar.

    I try to not snack in the afternoon...   

    Athletes need snacks! They get hungry and should eat at least every four hours. If you have breakfast at 7:00, you'll want lunch by 11:00, and then a second lunch by 3:00. (Note: change snack to second lunch, so you end up choosing quality food in this mini-meal, such as banana+peanut butter+crackers, or apple+cheese+nuts.

    Afraid you'll gain weight by eating a snack/second lunch? Fret not. You'll be less hungry for dinner. Instead of holding off to devour a huge evening meal, enjoy eating in the afternoon, when you feel hungry. Hunger is simply a request for fuel!

    I avoid peanut butter. Too fattening.

    Yes, peanut butter is calorie dense but it is not inherently fattening. A tablespoon offers about 100 satiating calories. A PB&J sandwich will help you feel fed far longer than eating similar calories from a low fat turkey sandwich. Plus, the fat in PB is anti-inflammatory; it reduces the risk of heart disease and diabetes.


    I love XXX but I've stopped eating it because I end up eating too much of it...       

    Foods that you love and have power over you (PB? pizza?) should be eaten more often, not less often. Deprivation and denial of your favorite foods leads to cheating and last chance eating. (You know, "I cheated; I ate a spoonful of peanut butter...I might as well finish the jar now and never buy more...") The solution is to enjoy peanut butter at every meal for the next week. It will lose its power. Trust me!

    Nancy Clark MS RD CSSD  counsels both fitness exercisers and competitive athletes in the Boston-area (617-795-1875). Her best-selling Sports Nutrition Guidebook is a popular resource, as is her online workshop. Visit NancyClarkRD.com for more information.

    The Athlete's Kitchen
    Copyright: Nancy Clark MS RD CSSD Feb 2024


  • 2024-02-28 12:09 PM | Anonymous

    By Eli Post

    John Hughes contributed a training article for many years. His writing was first rate, and the content helped our members improve their riding skills. He served us with distinction. We regret that John passed in February 2024.

    John’s website contains many articles that have yet to be on CRW and we can bring you his training wisdom for months to come. I worked closely with John and we developed a friendship. I will miss him.

    Eli Post
    WheelPeople Editor

    Below is abstracted from a testimonial to John, written by his family. 

    TABERNASH – John Lewis Hughes, 74, a college administrator turned international cycling coach, passed away Feb. 4, 2024, following emergency surgery. He was a caring spouse and friend, a passionate cyclist and cross-country skier.

    A Celebration of Life was held on February 23, at StJohn the Baptist Episcopal Church, Granby, CO A celebration will be held in Boulder in mid-March.

    Son of the Rev. James B. and Ruth L. Hughes, John was born in Seattle on April 22, 1949. His love for hiking, backpacking and mountaineering began in his youth. Graduating in 1967 from Stadium High School in Tacoma, Wash.he headed south to Stanford University, where he remained for nearly a quarter-century.

    He earned a degree in history and master’s in German Studies at Stanfordran the main auditorium and eventually held top roles in planning and budgeting as associate vice president and then senior associate dean. While at Stanford, he earned an MBA from the University of California, Berkeley.

    John relished ultramarathon cycling throughout North America, setting several course records, and in Franceriding Paris-Brest-Paris five times. He competed in the Race Across America multiple times as a rider or crew chief.

    In 1994, John and his wife, Barbara Harvie, moved from California to Boulder, CO where he began a new career as endurance cycling coach and author. (The couple later divorced)

    Certified as both a personal trainer and sport coach, John had clients in Asia, Australia, Europe and North America. He spoke at the 2011 International Conference on Cycling and Health in Shanghai, China. For 12 years, he led the Ultra Marathon Cycling Association. He wrote two books on endurance cycling and numerous articles for Ultra Cycling and later RoadBikeRider.com.

    After his marriage ended, John met Carol Garnand. Starting with a few hikes, they began dating in 2004. They formalized their relationship with a commitment ceremony in 2011 and married in Boulder on December 14, 2019, with John’s brother officiating. That same year, they bought a house at Tabernash, where John continued road and mountain biking. Together they enjoyed skiing, camping and kayaking, as well as concerts, opera, travel and John’s cats.

    John was proud of Carol’s skills as a silk artist and became her devoted set-up helper at art shows. Their travels took them to Norway for skiing and to India for daughter Erika’s wedding. He embraced Carol’s adult daughters as his own and was excited to be a grandfather. 

    Survivors include John’s wife, Carol; her daughters, Kirstin (Bryan), Lisa (Adam) and Erika (Kedar)granddaughter, Zelda; brother, Dick (Rachelle); nephew, Matt (Michelle); and niece, Alison.

    Contributions may be made to Grand County Wilderness Group, for whom John was board secretary; Colorado public radio/TV or UC Boulder Artist Series Fund.


  • 2024-02-28 12:08 PM | Anonymous

    By Coach John Hughes

    Unfortunately, John Hughes recently passed away.  Read Eli Post's Memorial Article on John Hughes in another article posted in this edition of the March WheelPeople.

    I’m almost 75 and have the fitness of a 53-year-old (although I felt older shoveling the foot of snow in the driveway this morning). This column explains the importance of your fitness age and how to estimate it.

    Fitness age is an estimate of how biologically old your body is compared to your chronological age. Hopefully your fitness age is less than your biological age, e.g., you’re 60 years old and your fitness age is about the same as a 50-year-old’s fitness. If this is the case you’ll probably live longer than most 60-year-olds. And if your fitness age is more than your chronological age, you’re at increased risk of dying prematurely.  And if you develop a chronic disease, the symptoms  will probably progress more slowly than if your fitness age is low.

    Aerobic fitness normally declines with age. One meta-analysis looked at  Cardiorespiratory fitness as a quantitative predictor of all-cause mortality. “Epidemiological studies have indicated an inverse association between cardiorespiratory fitness (CRF) and coronary heart disease (CHD) or all-cause mortality in healthy participants.” The researchers quantified this relationship by analyzing data from 33 studies with 102,980 participants. From the data in the different studies researchers estimated cardiorespiratory fitness as maximal aerobic capacity (VO2 max). The researchers concluded, “Better CRF was associated with lower risk of all-cause mortality.” 

    Norwegian scientists studied the relationships between aerobic fitness (VO2 max) and how long people lived.  They directly measured the VO2max of thousands of Norwegians, aged between 20 and 90. They also tabulated markers of their general health, including body composition, blood pressure, heart rate and exercise habits. They found the higher the VO2 max the longer people lived. They found that A simple nonexercise model of cardiorespiratory fitness predicts long-term mortality

    They developed a model, which uses gender, chronological age, height in centimeters, weight in kilograms, resting heart rate, how frequently you exercise, how long you exercise and how hard you exercise.

    I’m a 75-year-old male. I’m 178 cm (5’ 10”) tall and weigh 75 kg (165 lbs).  My resting HR is 50 bpm. I exercise most days of the week for more than 30 minutes (like shoveling snow) and some days I get a little sweaty and out of breath. The model says my body is 53 years old!

    This is the model to Test your physical age. (Here’s a handy metric conversion website).

    This model is derived from a large population and on average the cohort of people with the same fitness indicators as me have the same fitness age. My actual fitness age is somewhere between about 50 and 60, probably toward the lower end. The value of this model is it helps you understand the factors that contribute to your fitness age. Most of the factors are in your control except gender, age and height.

    The Northwestern Mutual lifespan model also helps you understand what factors are important. The Northwestern model uses gender, age, height and weight, family medical history, blood pressure, stress in your life, exercise, diet, alcohol use, smoking and use of recreational drugs. The model is set up so that each time you enter an answer it recalculates your age, which helps you to understand which factors are contributing to your projected age. My predicted lifespan is 101 years!  I’ve been keeping training info in blank journals since 1974.  I have enough blank journals to use until age 90. I wonder if that’s enough – or too many?

    My geriatric curve is also important. Most people’s health and fitness start to irrevocably decline after about age 50, and as they get older their health and fitness decline more rapidly. This is called the geriatric curve. Depending on your current fitness you may be able to get fitter, i.e., reverse your geriatric curve; however, eventually your fitness will start to decline. You can slow down the rate of decline – but you can’t stop it. I want to keep cycling, hiking, skiing and kayaking into my 90s and then drop dead. This is called “squaring the geriatric curve.”

    Bottom line: You have control over most of the factors that determine how long and how well you will live. Live long and prosper.

    Copyright © 2024 · Magazine Pro on Genesis Framework · WordPress



  • 2024-02-28 12:00 PM | Anonymous

    By Gabe Mirkin, M.D.

    The French NutriNet-Sante study found that eating dinner late in the evening is associated with increased risk for both heart attacks and strokes (Nature Communications, Dec 2023;14(7899)). Having a first meal for the day (breakfast or lunch) late in the morning also increased risk. The researchers followed 103,389 people, average age 42.6, for 7.2 years, during which time there were 2036 cases of heart disease, 988 cases of strokes, and 1071 cases of heart attacks, angina and heart stents.

    The researchers found that each hour of delaying dinner after 5 PM was associated with a 7 percent increased risk for a stroke, and that eating dinner after 9 PM was associated with a 28 percent increased risk for a heart attack, compared to eating before

     8 PM. They also found that each hour of delaying the first meal of the day after 8 AM was associated with increased risk for both heart attacks and strokes. The authors recommend eating both early dinners and early breakfasts.

    Other Studies have Shown Similar Results

    • Skipping breakfast has been associated with overweight and obesity (Obes Res Clin Pract, 2020;14:1-8), increased risk for a heart attack (Clin Nutr, 2020;39:2982-2988) and diabetes (J Nutr, 2019;149:106-113).

    • Eating just before going to bed at night was associated with increased heart attack risk (J Am Heart Assoc, 2020;9:e016455), obesity, high cholesterol and diabetes in women (BMC Public Health, 2018;18:1-12) and heart attacks (Circulation, 2013;128:337-343).

    • Eating late breakfasts tends to make longer overnight fasts so you may feel hungrier later on in the day, leading to higher food intake and increased insulin production. Skipping breakfast has also been associated with higher morning blood pressure and cholesterol levels (J Nutr Sci, Nov 2014; 3: e56).

    Why Late Dinners are Less Healthful

    Eating dinner just before you go to bed causes high rises in blood sugar levels and increased amounts of fat to be deposited in fat cells while you are sleeping. Resting muscles draw almost no sugar from the bloodstream and what little they do remove from the bloodstream requires insulin (Sports Medicine, Feb 2, 2018;1-13:), while contracting muscles pull sugar from the bloodstream and don’t even need insulin to do so (Diabetes Research and Clinical Practice, Sept 2007;77(3):S87-S91).

    • If you do not move around and contract your muscles after eating, you increase risk for high blood sugar levels.

    • You burn the lowest amount of calories when you sleep. When you go to sleep after eating, you burn fewer calories from that food so more of it is stored as fat (Metabolism, 2009;58(7):920-926).

    • Several studies show that blood sugar levels respond best to insulin during the day and worst at night (Nat Rev Endocrinol, 2019;15(2):75-89).

    • Cortisol levels are higher during sleep and raise blood sugar levels by blocking the effects of insulin (Ann NY Acad Sci, 2017;1391(1):20-34).

    Changing the evening mealtime of non-obese men from 6:00 PM to 10:00 PM significantly increased their markers for becoming obese and developing diabetes (J Clin Endocrinol Metab, Aug 1, 2020;105(8):2789-2802). They had higher blood sugar, higher insulin, higher cortisol levels, and reduced ability to remove and use fat from their cells. These are all major risk factors for obesity.

    My Recommendations

    The least healthful time to eat is just before you go to bed, and the most healthful times to eat are before you exercise or within an hour after you finish exercising (Appetite, 2013 Jan;60(1):246-251). Exercising after eating causes contracting muscles to pull sugar from the bloodstream, which helps to prevent high rises in blood sugar. Eating within an hour after exercising also helps to prevents a high rise in blood sugar. Your muscles can extract sugar from the bloodstream maximally without needing insulin for about an hour after you finish exercising, but this ability is then gradually lost over about 17 hours or until you contract your muscles again (J Appl Physiol, 2005;8750-7587).

    Gabe Mirkin, M.D., is a sports medicine doctor and fitness guru. A practicing physician for more than 50 years and a radio talk show host for 25 years, Dr. Mirkin has run more than 40 marathons and is now a serious tandem bike rider with his wife, Diana. His website is http://drmirkin.com/. Click to read Gabe’s full bio.

    © Copyright 2024, Gabe Mirkin MD, all rights reserved.

  • 2024-01-29 9:29 PM | Anonymous

    Dear CRW Members,

    Thank you everyone for participating in the surveys this year. We had our highest response rate ever with over 225 survey responses.

    The enthusiasm and insight from our board, alumni, and membership surveys have set a strong foundation for 2024, and the rise in volunteer interest is propelling us forward.

    Board and Alumni Insights:

    Our board and alumni have provided valuable perspectives, emphasizing the need for strategic growth and community engagement. Their experience and historical knowledge of CRW are guiding our efforts to enhance club operations and member experiences.

    Membership Survey Revelations:

    Your feedback in the membership survey has been eye-opening. From varied motivations like century rides to ride leadership, your diverse interests are shaping our club's future. It's your voice that's steering us towards 'Reducing Friction' in all our activities, making them more accessible and enjoyable for everyone.

    Volunteerism at an All-Time High:

    The response to volunteerism, especially from many first-timers, has been overwhelming. Popular volunteer opportunities spanned everything from century rides and ride leadership to club heritage had high levels of interest. This surge in volunteer interest is a testament to our club's vibrant and active community.

    A Club Shaped by You:

    Your participation, feedback, and volunteerism are what make CRW a unique and thriving community. We're committed to incorporating your insights into every aspect of our club's activities in 2024.

    Thank you for your continued support and enthusiasm. Together, we are embarking on a year filled with growth, connection, and seamless cycling experiences.

    Warm regards,

    Randolph Williams

    CRW President 


  • 2024-01-29 9:28 PM | Anonymous

    Our 3rd Annual Spring Swap Meet & Rides is coming in late April/early May

     

    What to do on these cold and snowy days?  Why not look over your bikes and cycling gear for candidates to bring to CRW's 3rd Annual Spring Swap Meet & Rides.  Freeing up more basement or garage space is easy, just review the list below for stuff you no longer need or want:

    - Complete bikes, frames, wheels, and tires

    - Components, parts, accessories, and tools

    - Car racks, travel cases, bike racks, and bike bags

    - Clothing including shoes, jerseys, hats, and jackets

    Like last year there will be "free stuff" tables to give away items, and find free gems for yourself. You can also sell your stuff and buy from others. Everyone wins!

    There will be two rides in the morning, followed by the Swap Meet in the afternoon, so it's a great opportunity to get in early season miles.  Look for more details as we get closer to the event!

    Jerry Skurla links to his member information, but there is no email address listed here unless you are logged in. Can we edit the text and layout at the end to:

    Jerry Skurla  is the volunteer coordinator for the Swap. He would like to hear preferences from members on the following location options:

    • A - Inside Rt 128
    • B - Outside Rt 128 & North of MA Pike
    • C - Outside Rt 128 & South of MA Pike


  • 2024-01-29 9:27 PM | Anonymous

    Cold Weather Exercise

    Heart attacks and strokes are associated with high blood pressure and increased clotting, and systolic blood pressure increases up to 1.7 mm Hg in the winter months compared to the summer months (Am Heart Assoc Hypertension Scientific Sessions, Abstract 493. Sept 9, 2023). Cold weather is associated with an increased incidence of heart attacks (Arch Intern Med, 2004;164(8):863-870). If you have heart or lung disease, you are far more likely to die in cold weather than in the heat (Lancet, May 10, 1997;349(9062):1341-6).

    How Cold Weather Can Cause Heart Attacks
    • Cold temperatures cause your body to produce large amounts of adrenalin which constricts your arteries to raise your blood pressure and to make your heart beat faster. If you have damaged arteries or heart muscle, your heart can start to beat irregularly and you can die.
    • Cold thickens your blood and makes it more likely to clot. A clot can shut off blood flow to the heart to cause a heart attack (BMJ, 1984; 289: 1405–1408).
    • Cold causes the liver to make more fibrinogen that increases clotting (Lancet, 1994; 343: 435–439).
    • Cold raises blood cholesterol levels (Am J Med, 1986; 81: 795–800).
    • A drop in body temperature weakens your heart muscle, and people with weak or damaged hearts can go into heart failure and die. Winter also deprives many people of sunlight and vitamin D which weakens the heart muscle.

    Cold Weather Can Damage Your Lungs
    Almost 20 percent of North Americans have exercise-induced asthma, which usually is caused by breathing dry cold air, not by exercise. When these people breathe dry cold air, the muscles around the tubes that carry air in and out of the lungs can constrict to make them short of breath. Exercise-induced asthma can occur in people who do not have asthma otherwise. It affects almost 50 percent of elite cross-country skiers, ice skaters and hockey players. Exercise-induced asthma is far more common in winter athletes than in those who compete in the summer. Dry cold air also increases risk for common winter infections such as colds or influenza, which cause inflammation that can damage arteries to increase risk for heart attacks.

    Tips for Outdoor Exercise in Cold Weather


    • If you have heart disease, your doctor probably will recommend that you should not exercise outdoors in temperatures below 50 degrees Fahrenheit. 

    • Exercising in cold weather can cause chest pain in some people who have no problems when they exercise in warm weather. When cold wind blows on your face, your heart rate slows down. This decreases the blood flow to the heart and can cause pain in people with blocked coronary arteries. While freezing your face slows your heart, freezing your fingers makes your heart beat faster. Cold hands will not cause chest pain, but a cold face can. 

    • Air is an excellent insulator, and layering clothes traps air. Wear a silk or loosely-woven polyester inner layer that wicks sweat away from your body. Loosely woven wool or synthetic-fiber sweaters or vests are a good middle layer because they trap insulating air and wick moisture to the outside. The outer layer material should be tightly woven so it blocks the wind; a waterproof rain jacket can perform this function. Nylon and Gore-Tex are outstanding because they can be extraordinarily light and still block the wind. Winter jackets do not need to be heavy, they just need to provide insulation and a barrier from wind and rain. 

    • You feel cold most in your fingers, ears and toes, so be sure to cover these areas. During World War II, gunners on bombers complained bitterly about frozen hands, ears and toes. Special insulation was added to their gloves, hats and boots, and they stopped complaining, but they suffered frostbite on their necks and chests. They had unzipped their jackets because they didn’t feel cold.

    • To help keep your hands warm on cold days, wear mittens that do not let wind or water in. The single compartment of mittens retains heat better than gloves that have separate compartments for each finger. If your hands still feel cold, swing your arms around rapidly from your shoulders with your elbows straight. This motion imitates a centrifuge that will drive blood toward your fingers and open up the blood vessels in your hands. You can buy single-use hand heating packets such as “HotHands,” online or in sporting goods stores, and rechargeable warmers are also available.

    Frostbite
    Raynaud's Phenomenon
    Hypothermia

    My Recommendations
    If you suffer from heart or lung disease, you should be very careful about exercising in cold weather. Breathing dry cold air constricts arteries and increases clotting to increase heart attack risk, and constricts bronchial tubes to reduce oxygen intake through the lungs. When the temperature drops, people with known heart disease or lung disease are safer exercising indoors where they can breathe warmer air.

    This article is reprinted from content courtesy of DrMirkin.com


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