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Common Topics
Lactic Acid
Lactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy during times of low oxygen levels. Your body's oxygen level drops during intense exercise or if you have an infection or disease. Anaerobic activity, such as fleeting the historical saber tooth tiger or these days lifting weights, causes lactic acid buildup. However, lactic acid buildup is not responsible for the muscle soreness felt in the days following strenuous exercise. Rather, the production of lactate and other metabolites during extreme exertion results in the burning sensation often felt in active muscles.
Scar Tissue
When skin or organs are damaged, the body naturally wants to heal itself.
Since the body cannot re-create healthy skin or tissue, it puts together new
fibers that are not as functional as the original tissue, but that serve as a protective,
useful barrier. When this barrier is completely healed, it is known as a scar.
Due to the fact that new scar tissue is laid down in a criss cross formation
instead of the one-direction of the original tissue, it is denser and has a limited
blood supply. And although it takes the place of damaged or destroyed tissue,
it is limited in function, including movement, circulation, and sensation.
