A few minutes of sprinting could make a bigger impact than 90 minutes of moderate running. Sprinting triggers changes in more than 200 metabolites and causes an immediate surge of proteins involved in blood-vessel growth, tissue remodeling, and hormonal signaling.

A few minutes of sprinting could make a bigger impact than 90 minutes of moderate running. Sprinting triggers changes in more than 200 metabolites and causes an immediate surge of proteins involved in blood-vessel growth, tissue remodeling, and hormonal signaling.