Answer:
20% of the body's oxygen supply.
Explanation:
The brain represents just 2% of a person's body weight, yet it uses about 20% of the body's oxygen supply. Without it, the brain can't perform even the most basic functions. The brain relies on glucose to power the neurons that control everything from conscious functions like planning and thought to automatic, unconscious processes like managing heart rate and digestion.
Answer:
Muscle is also very important to everyone because we need our muscles to survive. The heart is the strongest muscle in our body and is always looking to get stronger. Muscles enable us to be active and exercise. Our strength comes for our muscles and how much they are used.
Explanation:
The answer is A) squeezing a stress ball to relax.
Answer:
D, burning less than 400 calories per hour
Explanation:
the more calories burned, the better. You want to burn more than 400, not less than. Hope that this helps you and have a great day :)