Leila (Europe) on 04/17/2015:

I often have trouble falling asleep, recently I found out about the the "4-7-8" breathing trick, and it seems to work for me.

"You breathe in through your nose for four seconds, hold it for seven seconds, and exhale through your mouth for eight seconds. She explained to me that it slows down your heart rate and it also releases chemicals in our brains that soothe you".

Article about it on Dr Weil's site here.