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Yawns are "contagious" in that other people (and even dogs) often yawn in response to seeing someone else yawn. The reason people yawn is unclear, but it is thought to have evolved to serve a physiological need, but changed to serve mainly a social function in the animals that exhibit it. This is supported by the fact that yawns are not contagious to ...


7

1. You are right, the coccyx is the remnant of a vestigial tail, but still not entirely useless. According to eMedicine, it is an important attachment for various muscles, tendons and ligaments—which makes it necessary for physicians and patients to pay special attention to these attachments when considering surgical removal of the coccyx. Additionally, it ...


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Three spots in the brain do not automatically mean three different symptoms. Even if those spots are abnormal, they do not necessary cause any damage. A doctor in the "2. MRI report" says there are: ...few bilateral parietal subcortical tiny white matter foci...warrant further evaluation to exclude possibility of early onset MS. So, there are 3 tiny ...


1

Getting goose bumps is a reflex, which is an action your body has automatically without you even thinking about it. This particular reflex is known as the pilomotor reflex. Humans aren't the only mammals that have this reaction. Function of Goosebumps As for animals, the pilomotor reflex in them often has the effect of making an animal look bigger. This ...


1

The Adam's apple, in conjunction with the thyroid cartilage which forms it, helps to protect the walls and the frontal part of the larynx, including the vocal cords (which are located directly behind it). It is found in both women and men. ... Consequently, the laryngeal prominence grows in size mainly in men. https://en.m.wikipedia.org/wiki/Adam%27s_apple ...


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