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The sun is a source of energy but we cant use it for ourselves other than staying warm. the main source of energy for most living things are nucleic acids, they send chemical reactions to the body that make us who we are -Edited by Jordan R.
The Sun is the main and most important energy source.
The brain uses the most energy in the body.
solar energy
Magnesium
energy, oxygen
Glycogen
fats
fats
fats
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In its form, glucose is ready for absorption into the blood stream. As such, it is the most preferred source of energy in body cells.
sugars
the second most abundent gas in the atmosphere is oxygen and the first in nitrogen
food You body can also produce adrenaline when you are in "fight or flight" mode. In that case Adrenaline would be your body's main energy source.
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