Reader questions about lifestyle and longevity
Movement, food, stress, social life and everyday habits.
2 answers about lifestyle, each one with its study. Updated November 5, 2026.
- Do I really need 10,000 steps a day?New this month
We don't know yet. Our notes don't cover step counts, so we can't name a magic daily number. The CDC says adults need at least 150 minutes of…
- Do supplements actually work?New this month
It depends. In our two stories, fish oil and vitamin D supplements helped in specific situations: high LDL cholesterol alongside a heart-healthy diet, or very low vitamin D.…