stretching
Because your muscles need more oxygen, hence you hyperventilate.
It is good for the muscles.
Mitochondria make the energy in your body. During exercise you need more energy so you need more energy "factories"
Muscles need energy to contract because the body needs energy to produce hormones which stimulate production of red blood cells to carry oxygen to the muscles.
The faster your blood circulates, the faster blood can get to your muscles, giving you more energy in your muscles to use those muscles. Muscle cells need oxygen to work just like any other cell.
stretching
stretching
Oxygen
During exercise your muscles need more energy from respiration in order to contract. So your heart beats faster and the arteries supplying the muscles dilate (widen)
you need muscles to move...
When you exercise you use your muscles and your muscles contain Glycogen which could be considered your "energy source". during exercise your muscles use glycogen depleting your energy levels making you feel tired.
carbohydrates
When sugar is broken down during digestion - it releases energy - which fuels our muscles.
Because the blood is diverted to the working muscles instead, as they need the more blood in order to provide oxygen for aerobic respiration
without muscles we wont be able to live because our heart is a muscle and we have muscles going of the heart so that is the reason why we need muscles
Because your muscles need more oxygen, hence you hyperventilate.
eyelash muscles