Question: Do we create musels when doing exersice or do we biuld them up?

Emma Ross answered on 21 Jun 2013:

Great question Jess10amy! When we do exercise we can make our muscles bigger, and we can generate new muscle cells too. One of the reasons we get stronger with training is also to do with our nerves getting better at passing on information from our brain to our muscles, so its not just about how big your muscles are, but how well your central nervous system can control them.