Take That's Robbie Williams has revealed that he injects himself with a sex hormone twice a week because he was low levels of testosterone.
The singer told Esquire magazine he had been diagnosed with the problem after originally visiting a doctor in Los Angeles to ask for Human Growth Hormone.
"To cut a long story short I went to get some HGH. It's what all the old fellas are on out there in LA that's making them look 40 instead of 60,” he said.
"It's improving their health, their memory, their hair, skin. Could give you cancer. I weighed that up. Thought I'd have it anyway.
Williams continued: “Went to see a Hollywood doctor. Had my blood tests. Went back. He said, 'You don't need HGH. You've got the testosterone of a 100-year-old man.'
"And then everything made sense. It was kind of an epiphany that day."
Williams, who is currently on tour with Take That, added that taking the sex hormone had “changed his life” and given him a “second wind”.