Precerpt from Grandma's Ninja Training Diary; Longevity Edition

What the science (Academy of Cardiologists) says: 1. Being fit in your 40s–50s Adds about 2 extra healthy years Delays chronic illness by ~1.5 years Lowers risk of major diseases Sets you up for a smoother landing in your 60s–70s Translation: Midlife fitness is like prepaying your health mortgage. But what about your 60s? You still gain ~1–1.5 years before chronic conditions show up Your risk of…