When any function has to be performed by body , muscles use energy. It helps in doing work.
the shops
Human work converts chemical energy from food into mechanical energy through the contraction of muscles.
Muscles primarily use chemical energy stored in the form of adenosine triphosphate (ATP) to produce mechanical work. The chemical energy in ATP is converted into mechanical energy to enable muscle contraction and movement.
Muscles turn chemical energy into heat and work during contraction. Straight from the science book.
The byproduct of ATP when it makes muscles work is ADP and energy. They are not harmful in anyway.
The energy used when pulling a wagon is muscular energy generated by your muscles. Your muscles contract and exert force to move the wagon, converting chemical energy stored in your body into mechanical energy to do work.
Muscles in your body transform chemical energy into mechanical energy to generate movement. This process involves the conversion of the chemical energy stored in molecules like ATP into physical work, such as lifting weights or walking.
Muscles do is to command the bones to move and you need food and energy to move around.
The same place they get it from when they're used to do work ... the chemical potential energy that's extracted from food you eat, and stored in your body until the brain and muscles need it.
All these things are moving. Energy of movement is kinetic energy.
When a person lifts a chair, they use mechanical energy from their muscles that is converted into potential energy as the chair is raised against gravity. The person's muscles do work on the chair to overcome gravity, increasing the chair's potential energy.
Ok, here is the explanation of the question (the stupid question limitations didn't let me do it above):It is energy of our brains that puts the muscles in motion and does the work. Muscles are just mechanical part of us.How to program the energy? Any special technique? Mantras?For example: some people are capable of programming their brains to wake them up at 4:00 AM. Then they go to sleep, they do not use an alarm clock, and at 4:00 they're awaken. So, apparently the energy of their brains does the work even when they asleep.