LONDON (Reuters) – A large number of Britons would be prepared to give up sex if it meant they would live to be 100, according to a survey Friday.

The Mori research found that 40 percent would pass on the passion for longevity, although far more women (48 percent) were willing to make the sacrifice than men (31 percent).

However nearly all (94 percent) would not give up their friends or family in order to reach their century while a half thought scientists should keep trying to prolong people’s lifespans.

Private health care provider BUPA commissioned the survey as part of a debate on the implications of an aging population.

“Britain is facing an aging time bomb with major challenges presented by retirement, the desire to live longer and the increasing burden of caring for older people,” said Andrew Vallance-Owen, BUPA’s medical director.