The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Your heart beats over 36 million times a year.
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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.
Median Age at First Marriage in the United States
Median Age at First Marriage in the United States
Prevalence and Sex Distribution of Top 10 Autoimmune Diseases Diagnosed in the United States