The condition, which affects behaviour, concentration and attention-span, has been diagnosed in more than two-and-a-half million people in the UK.
But only about eight per cent are receiving a prescription for treatment.
Sabah Choudhry reports.
Read more: https://news.sky.com/story/adhd-sufferers-are-self-medicating-with-cannabis-because-of-nhs-delays-charity-warns-12933943
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