Stronger muscles in three seconds a day? Experts weigh in

Men and women who briefly contracted their arm muscles as hard as possible once daily increased their biceps strength.

source https://www.smh.com.au/lifestyle/health-and-wellness/stronger-muscles-in-three-seconds-a-day-experts-weigh-in-20220307-p5a2br.html?ref=rss&utm_medium=rss&utm_source=rss_feed