Women feel old at 29, judge age by physical features while men gauge age based on sex drive: study

Women reported that they base their aging process on looks, while men base it on sex drive.

Women feel past their prime at the ripe old age of 29, a new survey shows.

Men don't consider themselves over the hill until double that age, at 58, according to the survey conducted by a British-based funeral arrangement firm.

"We wanted to look at the perceptions of age, especially looking at men and women and the differences between them," said Alice Newsham, a spokeswoman for Avalon Funeral Plans.

"It really shows that every woman is judged for their looks. You hear here about [British broadcast] reporters who are let go from their jobs because they are getting old - and men are not in the same position," she said.

A majority of the 1,000 people polled on the company's website said 29 is when women don't have "it" anymore.

That means bewitching beauties like Beyoncé, Natalie Portman and Ivanka Trump - all 29 - are long in the tooth.

The survey results showed a whopping 50% of women said the first sign of being old is their "assets heading south."

More than a quarter of women said gray hairs were indicators of aging, while 10% cited saggy skin, and 3% said "realizing you've turned into your mother."

Men, on the other hand, didn't care about their looks. They were more interested in whether they could still get their groove on.

Nearly two-thirds said "decreased libido/not as 'able' in the bedroom" were surefire signs of being over the hill.

Many New Yorkers cast doubt at the findings Tuesday, saying age is just a number.

"I feel like I'm 20," said Hector Rivera, 57, a mail handler from the Bronx. "It's all in your brain. It's how you think about it."

"A body at rest stays at rest," he continued. "A body in motion is in motion."