Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Aged brains show reduced vascular length and branching density, increased radii, reduced pericyte density, slowed vascular response time, and lower oxygen carrying capacity in the blood compared to young brains.
