The Signifigance of Sweat

Sweating is a unique and essential human trait. It plays a crucial role in thermoregulation. As our ancestors adapted to life on the open savannahs, maintaining an optimal body temperature became vital for survival. Unlike other mammals, humans developed an efficient cooling system through sweat glands.

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The Might of the Human Hand

One of the many unique things about humans is the structure of our hands. This structure gives us the ability to use tools and technology in a way other species cannot.

The modern human hand differs greatly from the hands of early hominids. For example, Australopithecines had hands that were similar to other primates, with long fingers and a grasping thumb (Bolton, 2003).

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Effects Combat Sport vs. Video Games (Part 2/2)

Another area of comparison is the production of cortisol. In the combat study, there was a moderate increase in cortisol observed overall. However, there was a very significant difference between the level of increase in amateurs versus those who were highly trained. While the cortisol levels of amateurs jumped to be almost three times as high, the levels of increase for highly trained athletes was just over 50%.

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