Brain ageing is not gradual wear: around midlife the brain's original immune cells are replaced by inflammatory cells that came from the blood.

Drawn from what Eric Topol said

What this subject means

dementia Alzheimer's, Parkinson's and cognitive decline: what raises the risk, what is preventable, and what ageing well protects.

What Eric Topol actually said

Do you hold this korrent?Do you also believe this?

Shared subject first, then similar wording. They may agree or disagree.