Stefanie Powers is an American film and television actress best known for her role as Jennifer Hart in the 1980s television series Hart to Hart.View newly released photos of Stefanie Powers.tefanie Powers is an American film and television actress best known for her role as Jennifer Hart in the 1980s television series Hart to Hart. View newly released photos of Stefanie Powers.
Our brain is three times larger than a gorilla brain. 2:48 The human brain also seems special in the amount of energy that it uses. Although it weighs only two percent of the body, it alone uses 25 percent of all the energy that your body requires to run per day. That's 500 calories out of a total of 2,000 calories, just to keep your brain working.
The human brain is the central organ of the human nervous system. The human brain, with the spinal cord, makes up the central nervous system. The brain consists of the the cerebrum, its largest part, the brainstem and the cerebellum. The brain is the organ that controls most of the activities of the body.