BBC presenter and naturalist Chris Packham has urged Britons to spend their summer solstice outside - whatever the weather this weekend - after a study showed one in 14 adults will not see any sunlight on the longest day of the year.
The figure rises to one in 10 British adults aged between 18 and 24, according to a study by outdoor travel and adventure brand Kathmandu ahead of the summer solstice on Sunday.
Those who leave the house on a daily basis will spend an average of 79 minutes outdoors, the study adds.
The 2,000 people taking part in the survey said reasons for shunning the outdoors included work commitments, the weather and distractions such as games consoles and other electrical devices.
The Springwatch presenter, 54, said: "These are really shocking statistics - what on earth are these people doing indoors and not out here using some part of the outdoor or natural environment?
"Being outdoors provides all sorts of health benefits.
"We're hearing as a nation collectively we are becoming obese.
"Exercise, such as walking and cycling, is very important and helps address that. We also know that spending time in a green environment is beneficial to our mental health as well as our physical health."