There's a new sleep hack out there that's as easy as breathing. The "4-7-8 Breathing Technique" is pioneered by Dr Andrew Weil, a Harvard-educated physician with a focus on integrated medicine.

Researchers have found that part of our brain keeps a lookout when we sleep in a new environment. This "first-night effect" is the reason we often can't get a good night's sleep in new places, such as hotel rooms or aeroplanes.

Anyone who has used crutches knows how painful they can be, but a US company, Mobility Designed, have designed an ergonomic crutch to relieve the pain.