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Did you know?
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?
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.