As President Obama’s graying hair suggests, the American presidency is perhaps the most grueling and stressful political job there is. This year, both major party candidates for that job are past the nation’s customary retirement age. And while submitting health records is not a requirement for the job, Hillary Clinton and Donald Trump would be doing American voters a great service by furnishing a much clearer picture of their physical health than the abbreviated and sunny reports provided so far.

What brings the health issue to mind, of course, is the video of a stumbling Mrs. Clinton being hustled away from the 9/11 memorial service in New York on Sunday. She reappeared some two hours later to say she felt great. Hours later, her doctor issued a statement saying Mrs. Clinton had been suffering from pneumonia — a diagnosis Mrs. Clinton had received two days earlier and which came as a surprise even to some members of her campaign team.

Mrs. Clinton had coughed her way through multiple appearances last week, insisting it was nothing more than “allergies,” while her campaign pushed back on reporters who noted her coughing, telling one to “get a life.”

Mrs. Clinton has released more information about her health than Mr. Trump has about his. Mr. Trump’s evaluation consists largely of a terse and bizarre report written by Dr. Harold Bornstein, his gastroenterologist, who, after a brief examination, said that if elected Mr. Trump, a self-professed fast-food addict, “will be the healthiest individual ever elected to the presidency.” Mrs. Clinton’s record, consisting mainly of a letter written by her personal physician, Dr. Lisa Bardack, on July 28, 2015, is more than a year old and, while acknowledging her problem with blood clots, could use some updating.