Teenage years are difficult at the best of times but a lack of experience in relationships and issues with self-confidence can mean young people feel they have nowhere to turn.
Many victims, as well as perpetrators, come from abusive homes themselves and therefore don't realise how wrong these kind of relationships are.
More top news
Temperatures will reach around 28 Celsius (82F) at their highest.
A minute's silence will be observed at 11am on Thursday in remembrance of those who lost their lives in the Manchester Arena attack.
New research has found those who consumed two cups had a 35% reduced risk, and for those who drank five cups, the risk halved.