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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.
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
The human body produces and destroys 15 million blood cells every second.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.