Do Smart Phones Affect Your Sleep?
Is your phone keeping you awake at night? Recent research suggests that our increasing smartphone usage is making getting a good night’s sleep more difficult. The reason isn’t so much that phone-related activities stimulate our brains and keep us alert, as the type of light emitted by most modern phones and light’s influence over our sleep...
If you believe the evolutionary theory of sleep, you might be wondering why humans, not just non-human animals, still do it. There are famous examples of people being able to live on just a fraction of the sleep the rest of us have. For example, ex-British prime minister Margaret Thatcher was thought to have as little as 4 hours of sleep during her...
Common disorders associated with sleep.
Stages of Sleep
A look at the stages of sleep we experience at night.