Dark is restricted only to the sleep period, if even then; many people do not sleep in a truly dark bedroom. Seven hours of sleep embedded within 11 hours of circadian dark may be far more ...

And sleep in the dark. This will certainly improve sleep, and may reduce risk of later disease. Richard Stevens is professor, School of Medicine at University of Connecticut.

Afraid of the Dark, How to Sleep Better. Nyctophobia, or an extreme fear of darkness, affects both children and adults, often stemming from past trauma, anxiety disorders, or evolutionary instincts.

That’s right. Dark. Your body needs it too. Being exposed to regular patterns of light and dark regulates our circadian rhythm. Disruption of this rhythm may increase the risk of developing some ...

For the experiment, 93 students - 76 percent female - were asked to complete a survey that measured their fear of the dark and their sleeping habits.

Sleeping in the dark may reduce your risk of heart disease and diabetes, a new study suggests. Exposure to overhead lighting during sleep at night, compared to sleeping in a dimly lit room, harms ...