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.
Effect of age on the stretchiness of the lower cheek skin movement. This graph illustrates the association between the stretchiness of the lower cheek skin movement on the y‐axis and the age of the models (r = −0.60, p < 0.01). The straight line is the regression line, y = −0.0044x + 0.8051, indicating that the stretchiness of the lower cheek decreases with advancing age.
