A BOY with severe ADHD will be featuring in a BBC documentary tonight.

Kai Plant was diagnosed with attention deficit hyperactivity disorder when he was nine.

Now 12, the Colne Community School pupil has been taking part in a BBC One documentary the Doctor Who Gave Up Drugs.

Dr Chris van Tulleken uncovers the facts behind an increase in medication taken now compared to in the past.

Kai was one of the children who proved sometimes medication is needed.

Kai’s mum Chrissi, from Colchester, said her eldest son Connor, now 19, also has ADHD but Kai’s symptoms are on a different scale.

She said: “Kai’s schooling was suffering, he wasn’t able to concentrate on anything and he was quite aggressive. He would get frustrated quickly towards us, it’s quite hard.

“Connor wasn’t really that aggressive and we could manage him at home.

“Kai is different, we call him the Incredible Hulk because he can change so easily at the snap of your fingers.

“It’s a worry when you have younger children in the house, it’s quite scary.”

Kai has a younger sister Calleigh, ten, and his mum and dad, Scott, said it was unpredictable how he reacted around her.

She said: “He is really hard work at home, every morning it’s a struggle to get him up and to school. He doesn’t want to do anything.

“He has his medication for school but not at the weekends or holidays.

“It’s a daily battle and there’s some things he just won’t do, if a journey is too long or if it’s too busy.”

The family has not been on holiday for years as Kai cannot be in busy areas outside term time. Mrs Plant also gave up her nursing degree to look after him.

She said: “I was starting a degree at university but I pulled out. It was my second chance at a career but that’s parenting and we all make sacrifices.”

She saw an advert on Facebook to get in touch with the BBC as a parent of children with ADHD.

The channel contacted her and offered Kai a place on the programme.

As part of the show he took part in a number of mindfulness and meditation sessions with a coach and other children.

His mum said: “He was getting so wound up in the group they had to offer him one-to-one sessions.

“That is what daily life is like, I have to know all the triggers and know how to diffuse it.

“Kai really enjoyed being on the show as he knew he wasn’t alone.

“He met a lot of children who were perfectly normal apart from their condition, and it made him feel less lonely.

“Although he couldn’t do the meditation himself, he knows it helps me.”

Kai will be on the show tonight on BBC One at 9pm.