Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Did you know?
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
stigma of a Penta lanceolata flower
True-color image of layers of haze in Titan's atmosphere.