kisspeptin boosts your sex drive, according to Imperial College London study The hormone may even help women find their husbands more attractive

Dr Alexander Comninos, senior author of the study from Imperial College London, said: 'The pattern of brain activity we saw suggests kisspeptin may stop people overthinking when it comes to sex, therefore taking the brakes off sexual arousal.

Women on kisspeptin showed less activity in a brain region which could make them feel self-conscious about their body, when viewing the photos.

The male study had direct evidence that kisspeptin could boost men's sex drive, as their penises were up to 56 per cent more rigid while watching an erotic video after receiving the hormone.

The drug is a solution for the psychological causes of men's problems in the bedroom, rather than simply boosting blood flow to their genitals like Viagra.

Professor Waljit Dhillo, co-senior author of the study from Imperial College London, said: 'It is highly encouraging to see the same boosting effect in both women and men, although the precise brain pathways were slightly different as might be expected.'