Four key chemicals that govern your life — and expert tips on how to optimise them

Neuroscientist TJ Power: "You feel bad after hours on TikTok because it’s an activity that releases dopamine quickly, leading to a high.But when dopamine levels rise fast, they have to drop an equal amount before they rebalance. That’s what makes the comedown so bad."
January is a hopeful month when many resolve to make positive changes to make their lives happier and healthier. If you’re currently trying to do this, a new book by the neuroscientist TJ Power could provide you with the extra push you need to achieve your goals.
could be read as the 27-year-old’s personal manifesto for life. He used to drink, smoke and watch a lot of porn. But a mindfulness class made him realise the toll these habits were taking on him.