More on Sleep and Breast Cancer

A few weeks ago I posted on exposure to light at night and breast cancer, and now there is a related follow-up. A recent large scale study demonstrates the importance of sleep in preventing breast cancer. The study used those who slept 7 hours a night as a reference point, so they compared those who got more or less sleep to the breast cancer rates of the seven-hour-per-night sleepers. The study found that those who got only 6 hours a sleep per night had a 62% higher risk of developing breast cancer, whereas those who got an average of 9 hours per night had a 28% lower risk of coming down with the disease. So a fairly simple prescription to prevent breast cancer? Get a little more sleep.

Image of my family’s cat sleeping. Cats certainly have sleeping down to an art