Stress and sleep deprivation, one of the most vicious cycles we endure. We will often find it difficult to fall asleep due to our worries and stress, and in turn, the next day we will undergo even more stress due to lack of sleep. A survey completed by the Huffington Post found that in the U.S., sleep deprivation is a major source of stress among adults.

Tired and stressed? Join the club. Forty percent of Americans report having symptoms of insomnia at some point within a given year, according to the National Sleep Foundation.