1.
When we exercise, the _____ pumps more blood and gets stronger.
2.
Our body becomes fitter because our _______ grow during exercise.
3.
Our ______ become stronger when we exercise.
4.
If we have well-trained _____, we can do physical activities longer without getting tired quickly.
5.
Our _____ releases chemicals that improve our mood, attention, and memory.
6.
Burning ______ through exercise can prevent diseases like diabetes and obesity.
7.
Deep _____ helps us recover better and repairs our body.
