Athletes consume large quantities of food because they need more energy to fuel their intense physical activity and to support muscle growth and recovery.
When you consume more energy than your body expends, it is considered an anabolic state. In this state, the body uses the excess energy to build and store tissues, such as muscle and fat. Anabolism is associated with growth and repair processes, in contrast to catabolism, which involves breaking down tissues for energy.
The answer is brain. Your brain is almost exclusively depends on the glucose as energy source. You lose the consciousness very rapidly, if blood supply to the brain is hampered by any reason.
Muscle cells require more energy to fuel the contraction process, making them more metabolically active. Mitochondria are responsible for producing energy in the form of ATP through cellular respiration. Therefore, muscle cells have more mitochondria to meet the high energy demands required for muscle function. Skin cells, on the other hand, are mainly involved in providing protection and barrier functions, requiring less energy and hence fewer mitochondria.
The brain.
It is a large muscle which constantly exercising your entire lifetime. However, the human brain requires even more glucose and oxygen. The brain consumes 20% of the energy available.
Mitochondria is the part of cells that generate energy by turning nutrients and oxygen into fuel for the body. Muscle cells need this ability more because they are constantly working; fat cells do not need it as much.
no of course its not,it cannot contract and relax (horten and lengthen)
Japan.
There are a load of factors that change this number. For example, a toddler's brain is smaller and not functioning the same way as a college grad's brain is. Also, if the brain is functioning more (thinking more, dealing with harder tasks like writing, puzzles, driving, cooking, ect.), then it will also require more calories. A simple base is about 400 calories a day or so.
Muscle is muscle. A pound of muscle burns about 35-50 calories a day, so the more muscle you have, the more calories you burn. If you're looking to put on muscle in order to burn more calories in your diet, then you should work your entire body to allow each body part to grow, and give each part a few days rest in order to recover and rebuild.
the bigger your muscle becomes, bigger consume of energy after exercise. After aprox. 20 min of exercise you will use your energy from the fat, and if your intake of energy is less than your consume, is just math. Muscle doesn't build fat (it burns it) and muscle weighs more than fat. If you became a body builder and had good muscles and then years later didn't bother to keep up your exercise regime this is when the muscle would turn to fat. Muscle cannot turn to fat. But if you do not continue working it you will lose muscle mass and burn less calories. If you do not eat less or exercise more to compensate for this reduction in muscle mass than you will gain weight back in the form of fat.