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Link between sleep and health disorders

According to the National Institute of Health, 50–70 million adults have sleep or wakefulness disorders. One third of Indians get less than seven hours of sleep a night. One third of adults are sleepy during daylight hours and 70% of high school students are not getting enough sleep on school nights. 
Through sleep research many health discoveries have come forth related to brain pathways, circadian rhythms (physical, mental and behavioral changes that follow a 24-hour cycle, responding primarily to light and darkness) and sleep apnea. Brain pathways link sleep to our ability to learn, emotional responses and perceptions of emotions in others.
Image Source : valley sleep center

 The 'Circadian Clock' genes contribute to the health and repair of cells throughout the human body. Sleep apnea is associated with an increased risk of cardiovascular complications during pregnancy. Heart disease, stroke, diabetes, obesity, cancer and high blood pressure are a few health problems in which sleep disorders are associated. Continued research is needed to completely understand the full impact of insufficient sleep on many aspects of our health.

The National Sleep Foundation states that healthy sleep habits can make a big difference in your quality of life. Having healthy sleep habits is often referred to as having good "Sleep Hygiene". Getting 7–8 hours of sleep is optimal, but some people may require more sleep Stay Healthy :)

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