Good question. More oxygenated blood, more blood, circulates more blood. Lymph cleans the toxins out, it stimulates the production of ATP, increases cell metabolism, increased activity of the mitochondria.
Exercise requires energy, and some of that energy comes from stored body fat. Regular exercise then, combined with a sensible diet, will lead to reduced body fat.
mechanical energy
Your body consumes energy all day and all night, whether you exercise or not, until you are dead. When you exercise, and for a short while thereafter, your body burns more energy than normal.
You need energy in your body because if you don't have energy then you can't, exercise, work, or pretty much do anything that you normally do.
Carbohydrates give you lots of energy to do exercise.
Oxygen and energy.
Chemical bonds create energy in the body.
During exercise, your body uses energy. This process requires oxygen. So, if you exercise you pant, or breathe harder, in order for your body to draw in more oxygen.
The Human body needs to overcome gravity, and other external forces in order to move. In order to do this work, every cell involved must produce energy. This energy is produced by converting molecules in the body to other substances though the breaking of high energy bonds. In order to create the high energy bonds in the first place each cell must use what is called the Electron transport chain. This requires Oxygen, and so as your body needs to create energy at a faster rate as you use it up during exercise you must breath quicker in order to meet the demand
As you exercise your body uses stored fuel and turn it into energy to power mechanical movement. In this process, energy in the form of heat is released in to the surroundings. Therefore this is an exothermic process.
During exercise, your body uses energy. This process requires oxygen. So, if you exercise you pant, or breathe harder, in order for your body to draw in more oxygen.
create energy