Yesterday was International Yoga Day — a holiday established by the UN in 2014 with a goal of promoting physical, mental, and spiritual peace. Yoga can help you work out your physical and mental stresses, putting your mind at ease just in time to wind down for bed and can help you experience better sleep night after night.

If you’re a regular 8-hour-per-night sleeper, getting only 7 actually means you’re sleep deprived. What exactly is sleep deprivation and how does it impact your physical wellness?