Should You Try the 75 Hard Challenge? Experts Warn the Risks May Outweigh the Benefits The 75 Hard challenge requires two 45-minute workouts every day for 75 days.March 21, 2026- CNN Read More 2026, pressScienceSitesMarch 23, 2026
The 5-Day Brain Health Challenge A sharper, more resilient mind starts here.January 7, 2026- The New York Times Read More press, 2026ScienceSitesJanuary 8, 2026