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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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.