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Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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There are more sensory neurons in the tongue than in any other part of the body.

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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

An example of X-linked inheritance An example of X-linked inheritance
Geometry of bonds when carbon is covalently linked to three or four other atoms Geometry of bonds when carbon is covalently linked to three or four other atoms
Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The
Family interactive style predicts academic achievement in high school Family interactive style predicts academic achievement in high school
Plot of the percentage of X-linked recessive mutations Plot of the percentage of X-linked recessive mutations
Mammalian male sex determination is initiated by the Y-linked SRY gene Mammalian male sex determination is initiated by the Y-linked SRY gene
Video: Definition of heart rate

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