 Hello, I'm Claudia Hammond. After the news, I'll be here with Health Check. And this time I'm with a live audience at the Cheltenham Science Festival in the UK to look at the psychology of toxic positivity. It's that pressure from other people to be constantly positive, to look on the bright side and to suppress any negative feelings, even when you're seriously ill. But is it always good for you? Find out after the news what the psychologists and doctors on my panel have to say about it in Health Check from the BBC.