PALO ALTO, CA – A groundbreaking new stem cell therapy, hailed as a potential cure for age-related frailty, has confirmed its primary ingredient: the pure, unadulterated biological vigor of individuals under 25. The treatment, which significantly boosts mobility and vitality in older recipients, relies on a continuous supply of cellular material, prompting concerns about the logistics of harvesting enough 'youth juice.'

“We’ve found that the more TikTok dances they’ve recently performed, the higher the potency,” stated Dr. Evelyn Thorne, lead researcher at the Immortality Institute for Advanced Longevity, during a press conference held entirely on a Peloton. “Our preliminary trials show that subjects receiving weekly infusions from a 22-year-old barista who also dabbles in cryptocurrency experience unparalleled rejuvenation. The challenge now is scaling up the donor program without disrupting the nation’s avocado toast supply.”

Industry analysts predict a new economic sector dedicated to 'youth-sourcing,' with bidding wars already emerging for prime Gen Z donors. Concerns have been raised about the ethical implications of essentially siphoning the life force from one generation to extend the lives of another, but proponents argue it’s merely a highly specialized form of intergenerational wealth transfer.

“It’s a win-win,” commented venture capitalist Brock Sterling, 78, who recently completed his first 10K after receiving a full course of treatment. “They get a small stipend, and I get to finally understand what a ‘rizz’ is. Plus, my golf swing is back to its 30s. We’re just borrowing their youth for a bit, like a very expensive subscription service.”

Critics, however, warn that the therapy could lead to a future where the elderly are perpetually young, while the young are perpetually tired.