The first choice because with rounded shoulders, your body is going to be tensed and won’t allow you to move as fast. If you put your hands on your chest, yes, your feeling your heart but you just don’t put your hands on your chest when running.
Doctors say it is uncertain, but possible causes are genetics and the enviroment.
After an amphibian hatches from an egg they begin life as a <span>tadpole or larva</span>
