Why a Light While You Sleep Can Be Bad for Your Health

You may know that light at night affects your melatonin production, but this study shows how it affects your metabolism and heart rate, and sabotages your efforts to slim down.

STORY AT-A-GLANCE

• Researchers from Northwestern University found even a moderate amount of light exposure while sleeping has a negative effect on your heart health and metabolism, increasing your risk of developing Type 2 diabetes

• Light controls your internal clock known as your circadian rhythm, which is influenced by melatonin production in the pineal g…