Set aside for a moment the questions that have arisen about the current president of the United States, about whether he still possesses all his marbles.

The White House doctor says he does. That’s good enough for me.

CNN polled Americans and learned that 80 percent of us favor regular mental acuity examinations for presidents. Count me as strongly in favor of that idea.

The exams could help determine whether a president is showing signs of dementia, loss of mental snap, whether he is less alert. I’m all for it!

When is it too early? I don’t think you should set a minimum age for such exams. Donald J. Trump is 71 years of age. He clearly falls into the category of Americans susceptible to loss of cognitive skill.

I’ll pass along this personal tidbit.

My dear mother died in September 1984 — at age 61 — of complications from Alzheimer’s disease. She had become a mere shell of the woman she once was. She didn’t recognize anyone. She couldn’t speak. She couldn’t feed herself, bathe or dress herself. Eventually, she developed pneumonia after her brain ceased telling her lungs to breathe.

Mom was officially diagnosed with Alzheimer’s disease in the spring of 1980, when she was not quite 57 years of age. In truth, she had been showing some serious sign of personality disorder and loss of cognition at least three, maybe four years earlier. That meant she might have been showing early onset symptoms at the age of, oh, 53 or 54.

Most of us are still in the prime of life at that age. Not everyone is dealt that kind of good fortune. Mom clearly was dealt an extremely bad hand.

Thus, when the president of the United States is handed the nuclear launch codes and is put in command of the world’s most formidable military machine, I want to know whether he is up to the job.

By all means, we need to look inside their noggins regularly.