Savouring the pleasures in life is linked to better health and well-being. And no, that doesn't necessarily mean binge drinking or all-night wild parties.
Our sex lives may change as we get older but those in sexual relationships still want the same things as the young.
Scientists have tended to think of nonhuman sexual behaviour as being all about reproduction. In fact, there is far more ha ha hee hee than we give animals credit for.