For many, keeping positive and optimistic has been key to navigating the uncertainties and perils of the COVID-19 pandemic. But those harbouring an obsession with staying upbeat, or viewing negative emotions as a failure or weakness, may have fallen into ...

We might not be able to see it, but whenever we speak or cough or hiccup, we expel a kind of ‘mouth rain’ – a shower of tiny droplets that is thought to travel at least 1.5 metres. It is ...