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There are more sensory neurons in the tongue than in any other part of the body.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.