Mitochondria mania: Can supercharging your cells help you live longer?

"Longevity science" is on the come up—and "mitochondria" appears to be its newest mascot. The cell's energy-producing center is the talk of TikTok, wellness clinics and newsletters focused on longevity. Influencers peddle NAD⁺ supplements, which are marketed as a mitochondria-focused must-take daily elixir to boost metabolism and slow aging.