Key to good health: Morning sex?

‘Having sex in the morning releases the feel-good chemical oxytocin, which makes couples feel loving and bonded all day long,’ Dr Herbenick explained.

‘It makes you stronger and more beautiful too – morning sex can strengthen your immune system for the day by enhancing your levels of IgA, an antibody that protects against infection.

‘And climaxing releases chemicals that boost levels of oestrogen, which improves the tone and texture of your skin and hair.’