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

From exercise to social connections and healthy food, understanding the role dopamine, oxytocin, serotonin and endorphins play in our bodies can help you boost their positive effects

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.

The DOSE Effect: Small Habits To Boost Your Brain Chemistry 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.