- Dreaming is such a normal and important component of sleep that scientists have determined that people who do not dream tend to have personality disorders.
- Twelve percent of people dream solely in black and white.
- You will forget 90 percent of your dreams within 10 minutes of waking up.
- Insomnia can actually be fatal. A mere 10 days without sleep can kill you. (Interestingly, it takes more than 14 days to starve to death.)
- If you tend to sleep more on the weekends than during the week, you may have “sleep debt,” which can accumulate when you do not get enough sleep. To reduce the debt, work to get at least eight hours of sleep every night.
- The cerebrum makes up 85 percent of the brain and is responsible for all voluntary movements, such as walking and talking, as well as the five senses.
- During waking hours, your brain generates 10-23 watts of power. That’s enough energy to power a light bulb!
- A seven-year study found that people who ate seafood at least once a week had a 30 percent lower incidence of dementia.
- Estrogen has been connected to better memory function in both men and women.
- Oxytocin, a hormone that triggers feelings of love and connection, has been shown to help people with autism control repetitive behavior.
- The kidneys are a kind of water treatment plant for your body. They filter waste out of your bloodstream and pass it out of the body as urine.
- Your kidneys produce three hormones—erythropoietin (stimulates red blood cell production), calcitrol (form of vitamin D that’s important for bone health) and renin (controls blood pressure).
- The two most common causes of kidney disease are diabetes and high blood pressure.
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