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For older adults, being more physically active might help reduce feelings of depression — and part of why it works could be because it leads to more socializing.
When older adults are better at managing everyday tasks like cooking or shopping, they tend to feel less depressed.
Working out regularly can help older people feel less depressed.
Fish hearts have a lot of a substance called taurine, and it might help their heart cells stay the right size when the fish are dealing with changes in salt or water levels.
In flounder fish hearts, taurine and potassium might help heart cells stay the right size when the salt levels in their blood change, which could keep the heart working properly in tough conditions.
If you're a healthy young adult getting back into strength training after resting your leg for two weeks, taking creatine might give you more energy in your muscles and boost creatine levels after...
Taking creatine while rebuilding leg strength after being inactive might help your muscles improve faster by boosting a key protein that helps with energy use.
Taking creatine every day while your leg is immobilized might help keep your muscles' ability to handle sugar working better, so they don’t weaken as much.
Mice that can't grow enough tiny blood vessels in their muscles become insulin resistant, even though their muscle cells work normally when tested in a dish.
When mice have a broken insulin signal in their blood vessel lining, their muscles don’t get enough sugar—even if the muscle cells themselves work fine—because the blood flow to the muscles drops.
In rats, eating a diet that's a bit high in fat or salt messes up blood vessel function in muscles before the muscle cells themselves become resistant to insulin — and that blood vessel problem alone...
When the tiny blood vessels in muscles don't respond well to insulin, it's linked to being overweight, having insulin resistance, and getting older — and this might actually happen before the muscle...
Insulin helps more blood flow to muscles in rats and people by using a substance called nitric oxide, which helps sugar get into muscle cells better.
People with mild high blood pressure who have trouble using insulin well also tend to have muscles that don’t take in sugar properly and don’t get as much blood flow — suggesting their metabolism and...
People with mild high blood pressure who aren't taking medicine don't process sugar as well in their muscles and body when insulin is high, which suggests their body is resisting insulin's effects.
People with mild high blood pressure don't get as big of a blood flow boost in their muscles when insulin kicks in, compared to people with normal blood pressure.
When certain heart medications are removed from rat muscle cells in a lab, the cells start taking in more creatine than before — like they're bouncing back stronger after a pause.
Red blood cells keep much more creatine inside them than is floating in the blood, even if blood levels change — it’s like they have a special pump that keeps the levels steady.
Even though blood cells from people with kidney disease let in more creatine, they don’t end up with more creatine inside — probably because something in their blood is blocking it from building up.
People with kidney disease have red blood cells that pull in more creatine using sodium than healthy people do, but their cells work the same when sodium isn’t involved — this suggests their bodies...
In regular human red blood cells, about 40% of the creatine that gets inside does so using a special sodium-powered process, which means this system plays a big role in controlling how much creatine...
When young guys eat certain carbs that don’t digest and burn through their stored energy, their blood sodium dips just a little — but not enough to throw off body scan measurements.
After a really tough workout, young guys lose about half a liter of fluid from outside their cells within a day — and it happens whether their energy stores are low or full, so fluid changes aren't...
Even when athletes burn off more than half their muscle sugar, a body scan tool called BIS doesn’t see fake changes in muscle water — so it’s a reliable way to track body changes during training.