Rhonda Patrick: Cardiologists Found a Workout That Makes Your Heart Younger By 20 Years

Key Takeaways

• Do the Norwegian 4×4 protocol (4-minute high-intensity intervals x 4 sets) to improve VO2 Max and reverse heart aging.
• Start gradually if sedentary – even brisk walking can count as “high intensity” initially.
• Train VO2 Max 1-2x/week (study peaked at twice weekly then maintained at once weekly).
• Measure VO2 Max via the Cooper Test (12-minute flat-track run at max effort) or lab testing.
• Combine with strength training – the successful protocol included both cardio and resistance work.

Products & Gear Mentioned

• Concept2 rowing machine (used for Norwegian 4×4 intervals)
• Apple Watch (estimates VO2 Max)

Notable Quotes

“These 50-year-olds essentially reversed the aging of their heart by 20 years… their hearts looked like 30-year-olds after two years of this.”

Bottom Line

Do high-intensity interval training (specifically Norwegian 4×4) 1-2x weekly to dramatically improve heart health and VO2 Max – even starting in middle age can reverse decades of cardiac aging.

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