These changes can start as early as 10 years old, or occur when you’re 15 years old, or sometimes hardly at all. Many of these changes are caused by hormones, special signalling chemicals that are produced by glands in our bodies and that give directions to our cells to do particular things.
All of the changes happening to your body during puberty can have an impact your emotions. You might feel happy one moment and completely sad or angry the next. These kinds of mood swings are normal during adolescence.
It’s important to look at what’s making you feel the way you do and figure out what you can do to make yourself feel better. If your feelings are overwhelming you, it can help to talk about it with someone you trust.
If a boy’s voice hasn’t deepened by late adolescence, or if a girl hasn’t started menstruating by late adolescence, this may be indicative of a hormonal imbalance. It’s best to see a doctor.