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Excessive alcohol use costs the country approximately $235 billion every year.
More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
There are 20 feet of blood vessels in each square inch of human skin.
![A Dorsal view of a scan of the hand phalange of a child from Denisova that yielded mtDNA that differ](https://biology-forums.com/gallery/47/medium_273287_22_02_15_10_29_18_20802442.jpeg)
![Apply two-hand petrissage over the entire upper back. Place palms flat on back next to each other. ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_3_43_18_331702340.jpeg)