What happens in your body?
When you move or practise a physical activity many things happen in your body.  Your heart: gets bigger and beats slowly; it becomes stronger and send a grater quantity of blood around your body.
Blood:  Your blood: becomes more fluid, your arteries get larger; muscles and organs receive more oxygen.
Muscles:  Your muscles: become longer if you practise an endurance sport and bigger if you make intense efforts several times.
Bones:  Your bones: are more dense and thick than those of other people who don’t practise sports.
Progetto Comenius A.S.2011/2012 Classe II H