Reader questions about brain and longevity
Memory, dementia, mood and the aging brain.
2 answers about brain, each one with its study. Updated November 5, 2026.
- How can I overcome loneliness?New this month
It depends. Feeling lonely is not the same as being alone, so it helps to notice which one fits you. Our sources did not test cures for loneliness.…
- Can exercise lower my risk of dementia?New this month
It depends. In large studies, people with the highest fitness had about half the dementia risk of the least fit. But those studies watched people over time and…