Some think of loneliness as a problem which mainly affects older people, but it's actually younger age groups who' are worst affected, according to new research by The Jo Cox Foundation.
In a survey, 94% of 16 to 24-year-olds told the West Yorkshire-based charity they had felt lonely - compared with just over half of those aged over 80.
The foundation has launched its Great Winter Get Together campaign in a bid to encourage more open conversations about loneliness.
Chief executive Su Moore told BBC Radio Leeds: "There is still that image that lots of people have - if you say, 'What does a lonely person look like?', they'll think of an elderly person sitting at home.
"What we're saying is, there's no shame in sharing. Just take some small steps to try and chip away at that stigma. Be really honest if you're feeling lonely."
The charity was set-up in memory of the murdered West Yorkshire MP.