It’s no accident that fitness enthusiasts tend to take far fewer sick days than their sedentary peers. There is plenty of evidence that when you enjoy being active and can do so easily, your resistance to disease is at its best. Studies have shown that working out increases the activity of natural killer (NK) cells – immune system cells that attack developing tumour cells and help ward off infection. Take a moment to check in with your body right now. How does it feel? Are you sitting comfortably with good posture, or slouching and forcing your muscles and organs into awkward positions? Is your body telling you, “I feel nurtured, relaxed and fit”? Or is it saying “I ache”, “my muscles are tense” or “I’m pushed to the limit”? If your body is full of vigour, congratulations - keep up the good work! If your body is saying it’s uncomfortable, don’t panic. Research has verified time and again that it’s never too late to start boosting your health with exercise.
All it takes is 30 minutes per day.
Yours In Health,
Dr. Karen Baker
Monday, October 3, 2011
Exercise & Immunity
Karen Baker, BSc, DC
The fastest way to feel energized is to exercise, and the effects will be immediate. A simple 10-min walk will decrease tension, banish fatigue, and boost mental alertness for hours afterwards. Make it a daily routine, and pretty soon, you’ll be toning muscles, strengthening your heart, and improving the functioning of most organs and systems in your body. Exercise immediately lightens the workload of the immune system, speeding the elimination of germs and other threats by:
Stimulating circulation: Immune cells travel more quickly through the body, attacking and destroying invaders before they can do harm.
Making you breathe deeply: When you breathe forcefully, you often expel more waste, notably carbon dioxide, through your lungs.
Accelerating perspiration: As a result, metabolic by-products are eliminated faster through the skin.
Increasing muscle activity: This helps move dead white blood cells and debris through and out of the lymphatic vessels.
Improving self-confidence and self-esteem: This helps minimize the negative effects of stress.
Three or four brief sessions of strength training (such as lifting weights) and moderate aerobic exercise per week are all you need to supply your immune system with a greater number of NK cells, according to a review of 629 studies by the International Society of Exercises and Immunology. Although the number of NK cells drops back down to pre-exercise levels within hours, each workout pays off with a small but cumulative benefit that reduces the risk of infection and disease over the long term.
Karen Baker, BSc, DC
The fastest way to feel energized is to exercise, and the effects will be immediate. A simple 10-min walk will decrease tension, banish fatigue, and boost mental alertness for hours afterwards. Make it a daily routine, and pretty soon, you’ll be toning muscles, strengthening your heart, and improving the functioning of most organs and systems in your body. Exercise immediately lightens the workload of the immune system, speeding the elimination of germs and other threats by:
Stimulating circulation: Immune cells travel more quickly through the body, attacking and destroying invaders before they can do harm.
Making you breathe deeply: When you breathe forcefully, you often expel more waste, notably carbon dioxide, through your lungs.
Accelerating perspiration: As a result, metabolic by-products are eliminated faster through the skin.
Increasing muscle activity: This helps move dead white blood cells and debris through and out of the lymphatic vessels.
Improving self-confidence and self-esteem: This helps minimize the negative effects of stress.
Three or four brief sessions of strength training (such as lifting weights) and moderate aerobic exercise per week are all you need to supply your immune system with a greater number of NK cells, according to a review of 629 studies by the International Society of Exercises and Immunology. Although the number of NK cells drops back down to pre-exercise levels within hours, each workout pays off with a small but cumulative benefit that reduces the risk of infection and disease over the long term.
The Buzz on Caffeine
Dennis Newhook, RMT, CYT
Caffeine occurs naturally in many plants, including familiar sources such as coffee beans, the tea leaf, and the cocoa bean from which chocolate is made. Cola beverages also contain caffeine, both from the kola nut and (the majority) from supplemental caffeine (often taken from coffee beans which have been decaffeinated). Another common source is over-the-counter drugs such as cold remedies, pain relievers, and weight-loss aids.
While caffeine is generally recognized as safe, Health Canada does recommend a maximum daily intake of 400 mg. For adolescents and children, the amount is much less: 45 mg for children aged four to six; 62.5 mg for children aged seven to nine; 85 mg for children aged 10 to 12. Adolescents 13 and older, should follow the precautionary recommendations of 2.5 mg of caffeine per every kg of body weight.
Some health advocates have tried to link caffeine to negative health effects, but so far, most studies are inconclusive. What we do know is that everybody has a different tolerance for caffeine. In healthy adults, a small amount of caffeine has positive effects (increased alertness and concentration). For caffeine-sensitive adults however, even small doses cause insomnia, headache, irritability and nervousness. Children are at increased risks of experiencing these effects. Other effects of excess caffeine include muscle tremors, nausea, increased heart rate and blood pressure, and anxiety.
There appears to be a growing market for specialty formulated energy drinks. These often have very high amounts of caffeine and sugar, as well as other energy-boosting herbal ingredients. Labelling regulations require caffeine content be listed only when pure caffeine is added to a beverage. Extra caffeine from plant additives may not be reflected in the label. These energy drinks are NOT recommended for children, pregnant or breastfeeding women, or caffeine-sensitive people.
Some over-the-counter medications contain as much as 1000 mg of caffeine in a daily dose! Be sure to include that amount in your daily caffeine allowance. If you take caffeine daily, be sure to ask a medical professional if caffeine consumption could interact with any other medications you might be taking. So enjoy your daily java if you choose, but stay informed!
(Health Canada, Whitney & Rolfes: Understanding Nutrition)
Dennis Newhook, RMT, CYT
Caffeine occurs naturally in many plants, including familiar sources such as coffee beans, the tea leaf, and the cocoa bean from which chocolate is made. Cola beverages also contain caffeine, both from the kola nut and (the majority) from supplemental caffeine (often taken from coffee beans which have been decaffeinated). Another common source is over-the-counter drugs such as cold remedies, pain relievers, and weight-loss aids.
While caffeine is generally recognized as safe, Health Canada does recommend a maximum daily intake of 400 mg. For adolescents and children, the amount is much less: 45 mg for children aged four to six; 62.5 mg for children aged seven to nine; 85 mg for children aged 10 to 12. Adolescents 13 and older, should follow the precautionary recommendations of 2.5 mg of caffeine per every kg of body weight.
Some health advocates have tried to link caffeine to negative health effects, but so far, most studies are inconclusive. What we do know is that everybody has a different tolerance for caffeine. In healthy adults, a small amount of caffeine has positive effects (increased alertness and concentration). For caffeine-sensitive adults however, even small doses cause insomnia, headache, irritability and nervousness. Children are at increased risks of experiencing these effects. Other effects of excess caffeine include muscle tremors, nausea, increased heart rate and blood pressure, and anxiety.
There appears to be a growing market for specialty formulated energy drinks. These often have very high amounts of caffeine and sugar, as well as other energy-boosting herbal ingredients. Labelling regulations require caffeine content be listed only when pure caffeine is added to a beverage. Extra caffeine from plant additives may not be reflected in the label. These energy drinks are NOT recommended for children, pregnant or breastfeeding women, or caffeine-sensitive people.
Some over-the-counter medications contain as much as 1000 mg of caffeine in a daily dose! Be sure to include that amount in your daily caffeine allowance. If you take caffeine daily, be sure to ask a medical professional if caffeine consumption could interact with any other medications you might be taking. So enjoy your daily java if you choose, but stay informed!
(Health Canada, Whitney & Rolfes: Understanding Nutrition)
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