Stretchable MXene hydrogel sensor tracks heart rate and respiration during intense exercise, staying stable under heat, ...
Breathing is subconscious. We don’t have to think about it — it just happens. But when we exercise, many of us become more aware of it than we normally are — sometimes thinking about every breath we ...
DEAR DOCTOR K: I like really intense exercise, so I expect things to hurt when I’m working out. How do I know if I’m pushing myself too hard? DEAR READER: The expression “no pain, no gain” has misled ...
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