So why would anyone bother to sign up for a month-long plank challenge ... of five minutes a day? Well, writer Hollie Richardson has done exactly that – planning for 30 days – in a bid ...
Planks are generally regarded as one of the best core (and total-body) exercises you can do, so I was excited and nervous to embark on a 30-day plank challenge. “The plank is one of the best ...