Mark Goodier presents the first in a four-part series on feelings and emotions.
Suicide is the third most common cause of death among the under 25s.
Mark talks to those who have experienced the downside and those who have found ways of coping. Each programme will be supported by a confidential helpline run by the Samaritans on [number removed]. Calls are charged at local rate. Producer Kathryn Morrison * DOCUMENTARY: page 9