Activate your 'slimming' fat

Good news: You can turn your body's harmful white fat, which ups the risk of heart trouble, into calorietorching brown fat. Harvard scientists say activating brown fat, which wraps around your inner organs and breaks down fat molecules to keep you warm, helps you burn 25% more calories daily. Just...

- Alex Fulton

Close the curtains

Slipping on a sleep mask or drawing heavy curtains before bed helps you sleep more deeply, which energizes brown fat. In fact, a study in the Journal of Pineal Research found sound sleep ups calorie burn by 36%.

✓ Make snow angels