For years, the American Cancer Society (ACS) urged women to start mammograms at age 40, but they recently changed their guidelines. They now recommend beginning them at age 45, or at 40 if the patient chooses.
Coolidge ran for president in 1924 and won decisively over the Democratic candidate, U.S. Representative John W. Davis (1873-1955) of West Virginia, and the Progressive Party candidate, U.S. Senator Robert M. La Follette (1855-1925) of Wisconsin.
The Republican National Convention of 1924 nominated Calvin Coolidge as its candidate for a full four-year term as President. You'll recall that Coolidge had assumed the presidency following the death of Warren Harding.