HOW TO GET YOUR SWEAT ON IN FIVE MINUTES

No time for gym? Here’s a quick and effective no-gym workout from Luke Heath’s fitness app (free from the App Store). ‘This workout focuses on cardio and the legs, which are your big kilojouleburners and strengthen your core,’ he says. ‘When coupled like this, they’re hitting two-thirds of your body’s muscle mass, so you know it’s going to get your heart racing in no time.’

DO 15 REPS OF EACH:

• Burpees (with the option of burpee tuck jumps for you hardcore types) • Crunches with your feet on the bed • Athletic lunges • Mountain climbers • Walkingfeet plank