D. using illegal drugs does not improve productivity.
Blood carries oxygen throughout the body. The arteries carry around blood that contain oxygen and replaces the oxygen with carbon dioxide to be disposed of. The veins carry the blood with carbon dioxide.
It is recommended to work all major muscle groups at least twice a week for optimal results.
1. Physical activities can produce endorphins, strengthen bones, regulate blood pressure, clear the lungs, and control weight.
2. Warm up before taking part in physical activities and do the exercise when you start with low intensity and slowly work your way up.
3. Warming up your body keeps the muscles loose and limber when you are working out. Cooling down allows your body to regulate its blood pressure.
4. Flexibility, cardiovascular endurance, muscular strength, muscular endurance, body composition.
5. Anaerobic exercises mean without oxygen and aerobic exercises mean with oxygen
6. Cardiovascular exercise helps your blood pump oxygen-rich blood to your body faster and helps your heart and lungs to get stronger
7. They help set a guide for what exercises work for what parts of the body!
Hope this helps!!
B put the ball between your legs and hop on it
