15 Minutes a Day is All it Takes to be More Fit, According to Science

According to experts interviewed by Amanda Arnold of The Cut, most people deal with a constant state of low-level stress, thanks to work and financial pressures, the hassle of commuting or too few in-person interactions with friends and family. As a result, the body is often on a state of alert, which increases heart rate, blood pressure, cortisol and adrenaline levels not to mention the uncomfortable feelings of anxiety.