A new study hints that excessive HIIT may harm your mitochondria, the energy generators found in every cell of your body. If high-intensity exercise is good for us, is more necessarily better? Maybe not, according to an admonitory new study of the molecular effects of high-intensity interval training, also known …
Read More »Is It Safe to Go Back to Indoor Group Exercise Class at the Gym?
Indoor fitness classes, which often result in heavy breathing in poorly ventilated rooms, can be risky. Here’s a guide to help you decide if your gym is doing enough to prevent the spread of Covid-19. Last summer, a 37-year-old fitness instructor in Hawaii taught a spin class to 10 people. …
Read More »How Exercise Affects Our Minds: The Runner’s High
For years we’ve been crediting endorphins, but it’s really about the endocannabinoids. We can stop crediting endorphins, the natural opioid painkillers produced by our bodies, for the floaty euphoria we often feel during aerobic exercise, according to a nifty new study of men, women and treadmills. In the study, runners …
Read More »Weekly Health Quiz: Covid Vaccines, Side Effects and Exercise
1 of 7 Which statement about Covid vaccines is not true? It takes several weeks to build up immunity after vaccination Current vaccines are very effective in protecting against serious illness Once you are vaccinated, you no longer need to wear a mask Vaccine side effects may be more pronounced …
Read More »Weekly Health Quiz: Addictive Foods, Exercise and Heart Health
1 of 7 Certain foods may elicit “addictive-like” cravings, some research suggests, prompting us to overeat. All of the following foods were near the top of the list of “addictive” foods except: French fries Pizza Ice cream Bacon 2 of 7 A large analysis of more than 90,000 people found …
Read More »How to Exercise Outdoors in Cold Weather
Cold weather workouts do bring unique risks, but a little planning and preparation can help whether you’re going for a winter walk, trekking in snowshoes or sledding with the kids. The shift to colder weather makes hibernating under a pile of blankets — perhaps while binge-watching favorite shows — quite …
Read More »The Best Time of Day to Exercise
Men at risk for diabetes had greater blood sugar control and lost more belly fat when they exercised in the afternoon than in the morning. Is it better for our bodies to work out at certain times of day? A useful new study of exercise timing and metabolic health suggests …
Read More »The Benefits of Moderate Exercise
High-intensity workouts get a lot of attention and can be great for health. But moderate physical activity may have metabolic advantages. The best exercise for many of us may not be the briefest, according to a provocative new study comparing the head-to-head health benefits of short, intense, interval training with …
Read More »Set Your Exercise Goals High, but Not Too High
Inactive people started moving more if they received daily step targets that exceeded their usual number by about 500 steps. Want to exercise more this year? Then adopt workout goals that are challenging but not too challenging, tough but doable, individualized but evolving. Or maybe just plan to walk at …
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