As any keen gardener will testify, you can't beat the satisfaction of tending to an outdoor space. It's not surprising that since the lockdown was announced, people are turning to nature for an escape.
Gardening centres say they've been struggling to keep up with online orders since people were told to stay at home. And the Royal Horticultural Society and National Vegetable Society have reported a substantial increase in people starting to grow their own veg for the first time.
So why does pottering around outdoors make us feel good? Sir Cary Cooper is a professor of psychology and health at the University of Manchester.