Kate Winslet “knows” undergoing testosterone replacement therapy can boost sex drive. The ‘Titanic’ actress, 48, has been married to her 46-year-old husband Edward Abel Smith – formally known as Ned Rock ‘n’ Roll – for 12 years, and made the admission while hosting a mini-agony aunt session on the ‘How to Fail’ podcast. She said: “A lot of people don’t know this but women have testosterone in their body, (and) when it runs out, like eggs, it’s gone, and once it’s gone you have to replace it and that is something that can be done and you’ll feel sexy again… I know.” Kate spoke out on the treatm…