17. Woodrow Wilson
Woodrow Wilson was the president of the United States from 1913 all the way to 1921, and the World War surely had an effect on his looks and health, since he had to make a lot of potentially lethal decisions.
16. Warren G. Harding
Warren G. Harding ran the country from 1921 all the way to his death in 1923 from heart problems and pneumonia (back then they didn’t have antibiotics so it possessed a real threat). At the time he was amongst some of the most popular presidents in American history.
15. Calvin Coolidge
Calvin Coolidge served the country from 1923 to 1929. His biographer would later write: “He embodied the spirit and hopes of the middle class, could interpret their longings and express their opinions.” His looks hardly changed over that period, but he did gain some wrinkles.