Trump had his first physical exam as president last week at Walter Reed military hospital.
The 71-year-old president performed "exceedingly well" on cognitive screening, which is not a standard exam for the checkup but which was requested by Trump.
The writer is a physician.
"You'd think Trump supporters get mad, but then he blurts out, "Chuck Schumer did it" and Trump supporters believe him".
Trump's critics have openly questioned his mental health, and an explosive book on his presidency published earlier this month described aides as having doubts about his fitness for office.
Conway did not provide any specifics of the Trump-Schumer meeting, but told reporters: "That's what leadership looks like, the president inviting both parties again and again to the White House to discuss matters". Each time the doctor says the letter "A" the patient must tap their hand, with one point being awarded for one error or fewer.
What is Montreal Cognitive Assessment?
"The people that do the food at the White House are extraordinary, but I think they can maybe make the portions a little bit smaller and maybe we'll cut out some of the more fattening ingredients", he said. And, he gives us a glimpse into his exercise beliefs in that same Reuters interview.
"He's very sharp. He's very articulate when he speaks to me", Jackson said.
When asked to weigh in on mental health professionals who have suggested President Trump is showing signs of dementia or other mental issues, Dr. Jackson called that "tabloid psychology". Candidates with "mild cognitive impairment" scored just over 22 and people with Alzheimer's disease around 16.
Dr Jackson recommended Mr Trump, a known lover of cheeseburgers, carry out a low-impact exercise programme and for a dietitian to consult with the White House chef to cut calories.
"We discussed diet, exercise, and weight loss", the doctor said in his report summary. Most people age 65 and older are able to score this number, although as people age, the scores can decrease. Jackson is going to try to put the president on a diet, but he joked that the commander-in-chief might just live to be 200.
Long-running questions about Trump's fitness for office were given new fuel by Michael Wolff's White House expose in which staff expressed concern about Trump repeating himself.
"I would say he sleeps four to five hours a night, and he's probably been that way his whole life. I would just assume has led to some of his success over the years, he has a very unique ability to just get up in the morning and reset", the doctor said.