Not just any relative – the kind of relative you’ll have to convince you’re 100% fine and have never touched a recreational drug in your life. It might sound like a silly challenge, but give it 40 minutes or so speaking to your grandparents by phone and your brain will also start to believe you’re feeling better than you actually are. Which makes sense really – call a mate, spend the same time talking about how awful you feel and how can you expect not to feel even worse when you’re done?