Can 4 Seconds of Exercise Make a Difference?

By Gretchen Reynolds from NYT Well https://ift.tt/3o0IoE5
via IFTTT Can 4 Seconds of Exercise Make a Difference? Gretchen Reynolds Four seconds of intense intervals, repeated until they amount to a minute of total exertion, led to rapid improvements in strength and fitness in middle-aged and older adults. https://ift.tt/3o0IoE5 https://ift.tt/3b0zUsL Well New York Times December 30, 2020 at 07:00AM