Zone 1 (minimal exertion): Your heart rate is ideal for warming up before your workout, cooling down after a workout or during a recovery workout (light training after intense sessions). Primarily in ...

Cardiovascular disease is the leading cause of death not only in the United States but globally, per the World Health ...

AIM The effect of breathing 100% oxygen on retinal and optic nerve head capillary blood flow in smokers and non-smokers was investigated using scanning laser Doppler flowmetry (SLDF) as a new ...