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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.
If you could remove all of your skin, it would weigh up to 5 pounds.
Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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.