Your Daily Fitness Science Briefing

Hot Baths Show Surprising Cardiovascular Benefits, Fitness Industry Shifts Focus to Healthy Aging

• The 2026 Fitness Technology Summit, concluding today in Washington, D.C., has featured discussions on the evolving digital fitness landscape, moving from simple streaming to integrated ecosystems where wearables, apps, and physical spaces share data. Key sessions explored how AI and unified data platforms are redefining member expectations and operational strategies for fitness brands.

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• New research published October 14, 2026, in the *European Journal of Applied Physiology* reveals that immersing the body in hot water dramatically increased blood flow through tiny skin vessels more than cycling, suggesting passive heating can stimulate the cardiovascular system in ways similar to exercise. This surprising finding adds to growing evidence that hot baths can improve cardiovascular health.

  ZmescienceNewsweek

• The fitness industry is increasingly prioritizing longevity and healthy aging, with a 2026 National Academy of Sports Medicine survey identifying these as the fastest-growing client goals. This shift is reflected in an 8.6 percent year-over-year increase in participation among adults aged 65 and older, pushing total gym, health club, and studio memberships above 81 million in 2025.

  Newsweek