Physical exercise has multiple beneficial effects.
It alters the fatty particles - triglycerides – present in the blood stream making it easier for the enzymes to destroy fatty cells. Physical exercise helps burn off excess sugars because insulin, and the contraction of the muscles during the exercise, activate a molecule that helps to absorb glucose. A moderate dose of physical exercise reduces the chance of developing type 2 diabetes by 58 percent, about twice the preventative power of widely prescribed medications for diabetes. It is estimated that 150 minutes per week of moderate aerobic activity such as fast walking or gardening, or 75 minutes per week of vigorous activity such as cycling, running, swimming or playing tennis are enough to enhance such beneficial effects.

Moreover, physical exercise stimulates the cells that absorb extra energy to burn off what the body does not need, including mutated DNA cells or DNA cells that no longer work properly and could cause cancer if they stay in the body for a long time. It is well known that exercise helps fight dementia and neuronal degeneration. Physical exercise also works on the hippocampus, which is vital for a healthy memory.