long term effects of exercise

Regular exercise results in adaptations to the circulatory, respiratory and muscular systems in order to help them perform better under additional stress. Here are the changes which must take place within the muscles, respiratory system and circulatory system.so the more you exercise the stronger and thicker your heart get and your heart will be able to do four pump in one and that mean that your heart rate will decrease.

 when you exercise your breating rate will go down because your lungs can hold more oxygen into your heart so then your heart beats faster and thats why your heart rate goes up and down. the number of red blood cells increases, improving the bodies ability to transport Oxygen to the muscles. The cardiac muscle surrounding the heart hypertrophies, resulting in thicker, stronger walls and therefore increases in heart volumes. The more blood pumped around the body per minute, the faster Oxygen is delivered to the working muscles. the longer you train your mucsle round your heart get stronger to pump more in one pump and your heart rate will decrease.  if  you train for longer your bones will get thicker and be harder to break and also the liquid surronding the bone will get thicker so it will be impact resitant e.g. like punching your fist togerther it will hurt but when you do it with boxing gloves on it wont hurt.