Courtesy of Nicole Sirotin, Nathan LeBrasseur, and Morgan Levine; Alyssa Powell/BI Business Insider's Rising Stars of Longevity 2026 keep it simple when it comes to staying healthy. They stick to the basics like eating and sleeping well. One said exercise is more powerful than any supplement stack. We asked some of the top doctors, scientists, and investors in longevity for their approach to living a long and healthy life — and there wasn't an expensive supplement or unregulated peptide in ...