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Showing 37 to 48 of 91 articles · Most recently verified first
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Mostly no. A 43 study pooled analysis found adding cardio does not compromise muscle size or maximal strength. A small trade off shows for explosive power, and when you stack cardio and lifting in one session. Separate the sessions, lift first when combined, and favour cycling near leg days.
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Probably not. The worry comes from one 2009 study that measured a DHT rise after creatine loading and never looked at hair. The only trial to directly measure hair follicle health, a 12 week RCT in 2025, found no effect on hormones or hair. Limits remain: one short study in young men.
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Creatine adds a little water, often about 1 to 2 kg early, less without a loading phase, but it goes inside the muscle cells, not the layer under the skin. A controlled trial found extracellular water rose no more than with placebo. It is water in muscle, not fat, and it reverses if you stop.
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Not directly. You gain body fat from a sustained calorie surplus, whatever the source. Low fat and higher fat diets lose similar weight head to head. Fat is calorie dense, so fatty foods are easy to overeat, a portion issue, not conversion.
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Not by the clock. A controlled crossover found meal timing does not change 24 hour energy expenditure; late food is not 'stored as fat' by a switch. The link to weight gain is mostly behavioural: extra unplanned snacking on top of the day, and worse sleep from heavy late meals.
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Yes, in a 140,000 person study, each 5 kg lower grip strength meant about a 16% higher risk of dying, a better predictor than blood pressure. But it is a marker, not a proven lever: training grip alone is not shown to lower risk. The response is getting stronger overall.
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What youth-training guidance says about growth, why supervision and readiness matter, and why a general article cannot clear an individual child's programme.
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Resistance and aerobic exercise remain relevant after menopause, but bone-loading advice needs context. Supervised trials are not home exercise prescriptions, and bone-density findings are not guarantees about fractures.
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No. 'Muscle confusion' is a marketing idea, not a mechanism; progressive overload drives growth. Structured variation has a small role, but random frequent change stops you overloading a lift and hides what is working. Keep a stable core of lifts; change the programme for a reason, not a schedule.
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No, muscle and fat are different tissues and cannot convert into each other. When you stop training, muscle slowly shrinks and, if you keep eating the same, body fat can rise, two changes that look like one. Strength lasts longer than size, and coming back is faster than starting from scratch.
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Yes, modestly. A 139 study pooled analysis found music mostly makes exercise more enjoyable, makes a given effort feel slightly easier, and gives a small performance bump. Fast tempo beats slow. But music can't mask an all out effort, and works best for self paced moderate exercise.
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Yes, chronic short sleep works against both. In a calorie deficit it made a much bigger share of weight loss come off as muscle instead of fat, and raised hunger. It also weakens compound lift strength and blunts training adaptation. This is about a 5 to 6 hour pattern, not one bad night.
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