Harvard study advises 30‑minute moderate walking after meals for adults over 50

Harvard researchers say walking at moderate intensity (zone 2, about 60‑70 % of maximum heart rate, 4‑6 km/h) for 20‑30 minutes after lunch or dinner improves cardiovascular health, lowers the risk of hypertension, high cholesterol and diabetes, and helps control post‑meal glucose spikes. A six‑year cohort study showed these benefits are comparable to those of higher‑intensity running when total energy expenditure is equal.

Separate guidance recommends progressive strength training for people aged 50 and older. Two to three weekly sessions using moderate loads (8‑12 repetitions) combined with daily mobility work and adequate recovery (at least 7 hours sleep and 48 hours between sessions) can increase muscle mass, reduce body fat, improve joint health and prevent injuries. The three‑pillar routine—strength, mobility and recovery—is presented as an effective long‑term health strategy for older adults.