24-year-old Simone Biles says younger gymnasts now tease her about her advanced age

• Gymnast Simone Biles heads into this summer's Olympics at the ripe old age of 24.
• In most fields that is considered young, but in gymnastics Biles is virtually a senior citizen.
• Biles told the "Today" show this week that her teammates teased her over her advancing years.

The world of gymnastics has always been dominated by youth, with athletes as young as 14 and 15 often scooping up major international prizes and anyone over the age of 21 being thought of as over the hill.

At 24 years old, the US phenom Simone Biles is considered within gymnastics circles to be almost ancient, and that's something she says other athletes are now quick to remind her of.

Speaking with the "Today" show's Hoda Kotb in an interview that aired Wednesday, Biles said that at her ripe old age, she was already becoming the subject of teasing and jokes from younger athletes about her advanced years.

"Do you think about your age?" Kotb asked Biles during the pair's interview.

"Girl, all the time. Every day, I'm reminded of my age here," Biles replied, laughing. "The kids remind me how old I am every day."

She then shared an anecdote from a recent training session that drove home just how old she was in the context of the gymnastics world.

"Yesterday, we were in practice. And they were like, 'Simone, how long have you been doing this sport?' And I was like, 'Seventeen years.' And they were like: 'I'm not even 17 yet! Some of my teammates aren't even 17 yet.' And I'm like, 'Thank you.'"

As well as the teasing from younger stars, Biles noted that there was a serious side to her age within gymnastics.

"They have less years than me, so I feel like they're a little bit fresher," she told "Today." "They can recover quicker."

While Biles may be a lot older than many of her teammates and rivals, she still enters the Tokyo Olympics as the world's most prominent gymnast and is considered virtually unbeatable by many in the sport, including - possibly - herself.

"Are you beatable?" Kotb asked Biles. She paused for a second before smiling coyly and saying, "I don't know."

"You just never know," she added. "You just never know. If I'm at the top of my game, I feel like it would be very hard."