Why ALL men and women should take testosterone to defy ageing, by world expert doctor FLORENCE COMITE, who's used it for 30 years. Now she tells how it wards off fat and illnesses in definitive guide to 'fountain of youth' ⊖

If your libido has recently taken a dip then there's a chance you've wondered whether you might be low in testosterone. Indeed, for men and, increasingly, women it is seen as something of an elixir.