In this week’s issue: What does it mean to be happy and how can you get better at it?

Plus, how and when will the pandemic end, and is it possible to live free of toxic chemicals?

Available at newsstands and via our app for digital and audio editions.https://t.co/BR9CIpxqEz pic.twitter.com/mQfqCKk4wR

— New Scientist (@newscientist) January 20, 2022