When beginning a physical activity program, it is essential that the person might be healthy enough to participate in physical activity. The people are accountable for their own health risks and they must perform as their own health levels. Preventive health care helps ensure that you don’t have a health condition or a disease that could make the activity dangerous for you and that you’re fit enough to begin the sport you have chosen.
CO2 from the blood is released from the blood cells into the alveoli for exhalation while O2 from the alveoli is received into the blood cells to deliver oxygen to other parts of the body
