Myopia is a condition in which close objects appear clearly, but far ones don't. It is also called nearsightedness. the causes for myopia are both genetic and environmental. It seems to trickle down through generations of families, but there is not a single gene that determines myopia. Some researchers also believe that eye fatigue from excessive reading or holding a book too close to one's eyes can increase the chance of myopia in children. In short, myopia is not purely a genetic problem, it seems to be influenced by a variety of factors that include both genetic predisposition along with behavioral trends.
This could be a sign that the person has bulimia
Sweat or
perspiration occurs when the body’s core/internal temperature rises. This
phenomenon naturally occurs to help maintain and control the regular body
temperature of humans. Without sweat, the body will over heat and may lead to
heat exhaustion, heat stroke, or worst, death. Sweat glands that cover the
entire body are responsible for perspiration to maintain its homeostasis; as
the water in the sweat evaporates, the surface of the skin cools, regulating
and maintaining overall body temperature.
Perspiration/sweat
is mostly composed of water but it also contains some salts that are dissolved
and evaporated as well on the skin.
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