This week in health news, from UC San Diego’s Scott LaFee
OK, it’s a new year so this probably means you’re back at the gym, reintroducing yourself to staff. Good for you. Hop on that treadmill or stationary bike and go for it. Then hit the weights.
A large observational study has found that adding weightlifting to aerobic exercise is good for older adults, lowering their risk from most deaths .Weightlifting alone was linked to a 9 percent lower risk of death, while moderate to vigorous aerobic activity alone was tied to a 32 percent lower risk. Combine both and there was a 41 percent lower risk of death, compared with all those couch potatoes who do neither.
Weightlifting is tied to lean body mass, which is a sign of good health, but the authors also noted that weightlifting could bring social benefits if people work out in a gym with others.Humans are quite leaky, even apart from the obvious ways. You produce, on average, more than 20 ounces of saliva per day, though much of that is recycled. Approximately 1.5 pints are lost daily when water evaporates from the skin. When you sweat, you exhale approximately 60 to 70 milliliters of water per hour.
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