Forget hours at the gym - this Meredith Shirk workout is only 7 minutes and boosts strength, mobility, and flexibility

Kerry Law doing the Meredith Shirk 7-minute workout in back garden at home, standing on yoga mat to do cross-body punch and standing squat.

It’s a common problem: we want to exercise, but time is a barrier. Summoning up the motivation to do an hour-long gym session or strength training class, plus time spent showering and changing afterwards, is usually enough for us to say, “Ah, tomorrow…”. So, is it any surprise that an easy full-body workout (that doesn’t leave you dripping in sweat and can be completed in the time it takes to drink a coffee) is going viral?

Online trainer Meredith Shirk’s 7-minute full-body toning workout is attracting millions of views on YouTube, but why? It's a seemingly random number, but it might just be the sweet spot between a 5-minute workout and a 10-minute workout, the research says.