Scientists are exploring ways to reverse aging by reprogramming cells to a younger state, with billions of dollars invested in this research. Experimental treatments aim to restore cellular youth, but their effectiveness and timeline are uncertain. Experts discuss the latest developments in longevity research, including the potential of chemical reprogramming. This emerging field could revolutionize healthcare, but its success depends on overcoming significant scientific hurdles. Why it matters: the potential to reverse aging could fundamentally change our understanding of human health and longevity, making this a crucial area of research in the broader AI and biotech landscape.