into the deaths of two men in Essex.

Talking about your feelings can be tough, but parenting expert Stevie Goulding, from the charity Young Minds, suggests keeping the lines of communication open all the way through the exam period, and making sure you're ready to listen when they're ready to talk."Anxiety gets magnified when young people are under further strain and stress," she says.

"Really recognise and reflect: 'I've noticed you've not been sleeping or eating as much', speaking observations into existence, and making sure there's a lot of reassurance."There's no escaping it, revision can be really boring."I absolutely hate just sitting down with a laptop or book and just working," says Ben. "But I think it's the best way for information to get into me."

His GCSE results comprised mostly of the top grades of 7s, 8s and 9s. He loves maths and physics - something his sisters find hard to understand.He's sitting A-levels this summer, before taking a year out to decide between an apprenticeship or university.

He and older sister Emma both say that doing past papers and applying their revision to the questions has really helped with their study in the past.

"If I'm not doing questions to apply it, it just doesn't go in," Ben says.She said: “Addiction's so powerful that you'll do anything to get the drugs, whether nitazene is in it or not.

"It's like Russian roulette. You just need to get the drugs and that's it."Aid and Abet’s co-founder Kevin Neary told BBC Scotland: "If they want to prevent more deaths, they need to get more information and more support out there.

"There's a massive danger it'll come like a tsunami."Chief executive of the Scottish Drugs Forum Kirsten Horsburgh described the figures as a huge concern and said Scotland was not prepared for a major influx of nitazene.