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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.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
There are more sensory neurons in the tongue than in any other part of the body.