Why We Sleep and Dream

Research has shown that sleeping less than 7 hours a night can cause you to gain weight, even if you’re dieting and trying to lose weight.

Other symptoms and conditions are considered likely to happen if caffeine is consumed in large amounts such as sleep disruption, anxiety, rapid heartbeat, excessive urination, and irritability. It can also create what's known as a "caffeine crash" when all the effects of caffeine wear off that can result in a migraine.

Caffeine is a stimulant that is considered the same type of drug as cocaine and methadone and affects the central nervous system.

The reason people don’t get the amount of sleep they need is that of the light at night. Abbreviated sleeping can increase the risk of cardiovascular problems, diabetes, and depression.

Having your phone or computer on in your bedroom is a problem when it comes time to sleep.

It is the "blue light" that our electronic devices emit. And when left on and too close to the place where we sleep, can keep our body temperature elevated and prevent the right amount of melatonin from being produced by the body.

Migratory birds such as swifts, seabirds, sandpipers, and songbirds sleep as marine mammals do, unihemispherically.

Unihemispheric sleep gives some marine life — dolphins, orcas, porpoises, and seals — the ability to sleep using one brain hemisphere at a time.

Sleep is a period of activity when an important process of rejuvenation, renewal, restoration, and reinforcement occurs.

We think that when we sleep that the body shuts down, as well as our mind. Nothing could be farther from the truth.