There are already some publicly available reasons to worry about Trump’s health: Besides being the oldest president ever elected, he’s overweight, appears to subsist on a junk-food-heavy diet, and avoids exercise. “Grover Cleveland hid his surgery for jaw cancer, going so far as to have the operation done on a boat in New York Harbor,” said Nicole Hemmer, a UVA media history professor. “And of course the public was not informed of the full extent of Woodrow Wilson's debilitating stroke in 1919.”