The survey, launched as part of the Samaritan's annual 24:7 campaign, has found that as many as 42% of people living in the borough have between three and five hours spare time every day.
Fifty-eight per cent have thought about giving up some free time to help others locally, but nearly as many said that they spend their spare time sleeping! Young also came out top at watching TV (79.2%) sleeping or resting (53.5%) and listening to music (53%).
"Most people across all ages say we just 'flake out' for hours in front of the TV, although 63.6% of say they have thought of helping local people - but only seven per cent manage to get out there and do it! This shows there is a huge gulf between thinking about and actually doing something for others.
"It is so important for people to use their spare time for the good of others. Volunteering can be such a rewarding experience not only for those being helped but for those doing the work too. So many volunteers I meet say how it enriches their lives."
For a Samaritans fundraising pack with lots of easy-to-do ideas, call 0208 394 8393, e-mail 247@samaritans.org or check Samaritans' web site on www.samaritans247.org and help Samaritans continue their vital emotional support, round-the-clock, by phone, e-mail, letter and face to face.