Siim Land: The Exercise That Made Hearts 20 Years Younger
S Siim Land Video Summary · February 26, 2026 View Full Protocol → Key Takeaways 4×4 Norwegian protocol: Perform high-intensity interval training (4 rounds of 4-minute intense bursts with 3-minute recovery) to improve heart function and reduce arterial stiffness. Exercise frequency: Commit to structured exercise training for at least two years to see significant improvements…
