Overview
- The 30-year study tracked 47,513 women to analyze the effects of caffeine intake from coffee; tea; cola; and decaffeinated coffee on aging trajectories.
- Healthy aging was defined as reaching age 70 or older free from 11 chronic diseases; preserved cognitive performance; maintained physical mobility; plus good mental health.
- Each extra cup of caffeinated coffee in midlife was associated with a 2-5% greater likelihood of healthy aging, up to a limit of five small cups per day.
- Neither tea nor decaffeinated coffee showed significant healthy aging benefits; each additional small glass of cola corresponded to a 20-26% lower chance of aging healthily.
- Researchers noted that moderate coffee consumption—up to two cups daily—may offer modest protection when paired with regular exercise; a balanced diet; plus smoking avoidance.