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Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
The longest a person has survived after a heart transplant is 24 years.