Connections Between Sleep, Health, and Disease

Sleep plays a critical role in health and well-being by helping maintain optimal physiological and cognitive function and influencing host metabolism and immunity. The relationship between sleep and health is complex, but many adults who average less than seven hours per night are more likely to develop a chronic condition. Poor sleep quality is also associated with a higher rate of depressive symptoms. In some cases, achieving restorative sleep can seem difficult; the statistics below highlight the impact of sleep-related dysfunction and offer key techniques for improving sleep practices. 


Almost 50% of all Americans say they feel sleepy during the day between three and seven days per week.1
43% of single parents sleep less than seven hours per night compared to 33% of adults in two-parent homes and 31% of adults with no children.2
58% of middle schoolers and 73% of high school students get less than the recommended amount of sleep for their age. 3
40% of people with insomnia are believed to also be affected by a mental health disorder. 4

+ References

Watch IFM educators discuss sleep

Zee, Phyllis C. upd 12.17.15_sqaure
Phyllis C. Zee, MD, PhD
Optimizing Circadian Rhythm and Healthy Sleep

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Take a closer look at how the factors below affect the body: