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ChrisCarmichael

Training for high altitude at low altitude

If you live closer to sea level and are planning a high altitude trip this summer, you'll have to do more than casually hike some hills. Strapping on ... Read More »

Your resting heart rate

Plenty of nurses have taken my pulse during physical exams, shouting out a number usually in the low 60s before recording it on my chart. They're ... Read More »