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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.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.