Freebase(0.00 / 0 votes)Rate this definition: Commonly used in medicine, the word decubitus is used to mean lying down. It is derived from the Latin verb âdecumbereâ meaning to lie down.
The brain regulates metabolism and manages other functions to keep your body temperature within a normal range. But the brain can only do so much, and a host of outside factors can affect your body temperature. Controlling and managing these outside factors is key to maintaining a normal body temperature.
Sweat helps maintain a normal body temperature.  Sweating is your body's way of reducing your internal body temperature, says dermatologist Patricia Farris, MD, a clinical assistant professor of dermatology at Tulane University in New Orleans.he amount of sweat considered normal is quite variable and depends on the demands of the body, says Dee Anna Glaser, MD, a professor of dermatology at St. Louis University, in St. Louis, Mo., and president of the International Hyperhidrosis Society.