Biohacking News

Oversleeping and Under-sleeping are Bad for Health

September 24, 2023

Researchers from the University of Washington have done a study in 2023 that explains why everyone should get at least 7 hours of sleep.1 More than 9 can be too much. The researchers explained, “Sleeping less than 7 hours per night on a regular basis is associated with adverse health outcomes, including weight gain and obesity, diabetes, hypertension, heart disease and stroke, depression, and increased risk of death. Sleeping less than 7 hours per night is also associated with impaired immune function, increased pain, impaired performance, increased errors, and greater risk of accidents.”

Oversleeping is Bad for Health as Well

Oversleeping can be bad for you health as well. Many people think that sleeping a lot is good, but the researchers have found that, “Sleeping more than 9 hours per night on a regular basis may be appropriate for young adults, individuals recovering from sleep debt, and individuals wit illnesses. For others, it is uncertain whether sleeping more than 9 hours per night is associated with health risk.”

Need to See a Doctor? You Should

It is important if you are sleeping too much or too little to get medical attention. The researchers explained, ” People concerned they are sleeping too little or too much should consult their healthcare provider.” So, any biohackers looking out for their health should be sure to pay attention to this new study.


  1. Watson, N. F., Badr, M. S., Belenky, G., Bliwise, D. L., Buxton, O. M., Buysse, D. J., Dinges, D. F., Gangwisch, J. E., Grandner, M. A., Kushida, C. A., Malhotra, R. K., Martin, J. L., Patel, S. R., Quan, S. F., Tasali, E., Twery, M. J., Croft, J. B., Maher, E., Barrett, J. A., . . . Heald, J. L. (2015). Recommended amount of sleep for a healthy adult: A joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society. Journal of Clinical Sleep Medicine11(06), 591–592. https://doi.org/10.5664/jcsm.4758