Hormones cause the physical changes to our body during puberty as well as the emotional changes we experience. Different hormones are released into our body during puberty which causes your body shape to change, breasts to grow, periods to begin as well as affecting our feelings and emotions. You may be feeling on top of the world one day but lousy the next, and you won’t be able to figure out why. Don’t worry – it’s normal to be confused by the effects your hormones are having on you. It is important to maintain good nutrition so that you can avoid hormonal imbalance and mood swings. And just remember, puberty doesn’t last forever!