By Gabe Mirkin, M.D. You feel cold most in your fingers, ears and toes. During World War II, gunners on the bombers complained bitterly about frozen hands, ears and toes. The Army Air Force added special insulation to their gloves, hats and boots, and they stopped complaining even though they still suffered frostbite on the skin of their necks and front of their chests. They … [Read more...] about Cold-Weather Exercise Tips
By Gabe Mirkin, M.D. No data exists in the scientific literature showing that any type of exercise weakens bones. Bone growth depends on the forces exerted on them by gravity and contracting muscles. So any activity or exercise that causes you to contract your muscles will strengthen bones (Medicine & Science in Sports & Exercise, November 2009). … [Read more...] about No Evidence Cycling Weakens Bones
By Gabe Mirkin, M.D. Just about everyone with an unobstructed nose will breathe through their nose when at rest or during casual activities, but most people will breathe through their mouth during exercise. The more intensely you exercise, the more likely that you will have to breathe through your mouth because you may not be able to get enough air through your nose to feel … [Read more...] about Should You Breathe Through Your Nose or Your Mouth When You Exercise?
By Gabe Mirkin, M.D. A study from the University of Texas, Southwestern Medical Center, found that mice fed diets high in sugar developed severe colitis by increasing harmful colon bacteria and decreasing healthful colon bacteria (Sci Transl Med, Oct 28, 2020;12(567):eaay6218). The researchers fed mice various dietary sugars such as glucose, fructose, and sucrose for seven … [Read more...] about Eating Lots of Sugar May Damage Your Colon
By Gabe Mirkin, M.D. A study from the Karolinska Institutet in Sweden shows that repeated bouts of exercise slow the growth of, and help to prevent recurrences of, cancers (eLife, Oct 23, 2020;9). The authors showed, in both mice and humans, that exercising muscles release into the bloodstream chemicals that increase production of CD8+ cells that an individual’s own immune … [Read more...] about Exercise Should Be Part of the Treatment for Cancer