Charles is the father of 14 year old Daniel. Daniel was diagnosed with kidney problems before he was born, and has been gaining weight since he was 3 years old, even though he plays lots of sports. Daniel was recently referred to an obesity clinic.

• Health and weight: parents

Sean said that he needs to lose weight and after searching the web for information he started a training routine that consists of running and cardio exercises. He tries to do it four times a week. Sean thinks that the NHS needs to do more to help overweight young people like him to get the advice and help they need to lose weight. Ethnic background: Black Caribbean.

Anaan says she was always big but two years ago she decided to lose weight and lost two stones. She did not diet but says that she simply changed her eating habits like replacing chocolate for a piece of fruit and reducing her food portions. She joined a weight management programme for young people because she is interested in doing more physical activities. Ethnic background: Somali.

Three months ago Naz joined a community-based weight management programme; SHINE. She says that this programme has provided her with important information and knowledge about healthy eating and healthy lifestyle. She has started to lose weight and feels more confident. She is going to study fashion design and photography. Ethnic background: Pakistani.

Rihanna suffers from high cholesterol and is very aware of the need to lose weight and do more exercise. Her medical condition is called hyperlipidemia. She goes to hospital every three months and takes statins every day. She also sees a dietician. Ethnic background: White British.

Loz has asthma and finds that the extra weight she carries has made her condition worse. She sees a dietician who told her she is overweight and needs to change what she eats and do more exercise. Loz is attending a health kick programme run in her local area. Ethnic background: White British.

Emma, 19, was bullied throughout primary and secondary school, and although it was hard for her at the time, she believes it's made her the person she is today. Emma believes the hardest part about losing weight is maintaining it afterwards. Ethnic background: White British.

Alex, 14, says her health ' particularly her asthma ' has improved since she lost weight.

Reg has been attending a weight management programme for young people. She thinks it's important for parents to let their kids know that it doesn't matter that they're overweight and should help them by joining in. Ethnic background: White British.

Chelsea is 17 years old and a student. Over the last two years she has lost six and half stone after she joined SHINE; a program designed to help obese and overweight teenagers to lose weight. Now Chelsea works at SHINE as a volunteer sharing her experience with other young people. Ethnic background: White British.