London - Jennifer Aniston says she feels "physically incredible" after celebrating her 50th birthday earlier this year.
But the actress has revealed she still fears one aspect of ageing – going grey.
Despite looking as good as ever, she admitted she is anxious about losing her honey blonde hair, which spawned a thousand lookalike cuts during her "Friends" heyday in the 1990s.
"I’m not gonna lie – I don’t want grey hair," she said. Reaching a half-century, the star initially shrugged off any anxiety about the age she was turning.
"Fifty was the first time I thought, 'Well, that number'," the told InStyle magazine. "I don’t know what it is because I don’t feel any different. Things aren’t shutting down in any way."