Figure 3.
The marginal effects of the activity space park availability on cognitive change from age 70–76, by age period: (a) Childhood (age 4–11); (b) Adolescence (age 11–18).
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.