human
I've heard that a good night's sleep is essential for good health. Is there any scientific evidence to back this up?
assistant
Yes, there is scientific evidence to support the importance of getting enough sleep for optimal health. Studies have shown that people who get less than 6 hours of sleep per night are more likely to experience fatigue and other health problems. In addition, studies show that sleeping fewer than 7 hours per night can increase your risk of heart disease, diabetes, obesity, depression, and certain types of cancer.