Up to 40 percent of 80-year-olds are sexually active, new research suggests.
More than half of those aged between 65 and 80 say being intimate is important for their quality of life, a study found today.
Some 73 percent of older people are satisfied with their sex lives, however, 18 percent of elderly men have taken medication to improve their performance between the sheets in the past two years, the research adds.
Dr Alison Bryant, from the elderly person's charity AARP, which sponsored the study, said: 'This just confirms that the need for and interest in sexual intimacy doesn't stop at a certain age.'
Study author Dr Erica Solway, from the University of Michigan, added: 'Sexual health among older adults doesn't get much attention but is linked closely to quality of life, health and well-being.'
Up to 40 percent of 80-year-olds are sexually active, new research suggests (stock)
A brain chemical that fuels sex drive and could help women achieve better orgasms was discovered in January 2018.
Kisspeptin, which is better known as the 'kiss hormone', has previously been linked to puberty and fertility, but new research suggests it could benefit women suffering from extremely low sex drives, or hypoactive sexual desire disorder (HSDD).
Testosterone is sometimes given to improve women's desires between the sheets, however, this can cause 'male' side effects, including facial hair and a deeper voice.
Kisspeptin's potential complications are unclear.
Study author Professor Julie Bakker, from Liege University, Belgium, said: 'There are no good treatments available for women suffering from low sexual desire.
'The discovery that kisspeptin controls both attraction and sexual desire opens up exciting new possibilities for the development of treatments for low sexual desire.'
HSDD is thought to affect up to 40 per cent of women at some point in their lives in the US and UK. Five-to-15 per cent suffer continuously.
The researchers discovered kisspeptin drives both attraction and sexual behavior in female mice.
They also found that pheromones, the chemical scents animals give off, are secreted by male brain cells, which transmit a signal to other nerve cells, known as neurons.
Known as gonadotropin-releasing hormone neurons, these signals