Nap to fire up energy levels, hug to calm worries and sing to stop snoring: How to change your life in just 15 minutes!

Our bodies work in cycles of about 90 minutes, says Dr Jenny Brockis We hit a peak of alertness and energy of about 20 minutes 'A 15-minute activity fits neatly within that peak,' she explains Nap to fire up energy levels, hug to calm worries and sing to stop snoring: How to change your life in just 15 minutes!