Jackson told reporters he had not seen a medical need to do a cognitive examination, but that Trump had insisted on one - the first time, according to Jackson, that such a test had been administered to a sitting president.
In addition to assessing Trump's physical health, Jackson also gave Trump a cognitive assessment, screening him for neurodegenerative conditions like Alzheimer's and finding him to be mentally "sharp".
Dr. Ronny Jackson gave the press a detailed briefing, going into almost every aspect of Trump's health after a four-hour medical examination.
Not expected are any conclusions about Trump's mental acuity.
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In the book, sources close to the president and the administration had said that Trump was prone to repetition and that aides regularly questioned his mental stability.
Even so, Jackson said, the president shows no evidence of heart disease. Jackson said he didn't think Trump needed a cognitive assessment after interacting with him daily over the past year. "I found no reason whatsoever to think the president has any issues whatsoever with his thought process".
Those challenging the health assessment are calling their crusade the "Girther" movement, a take on the notorious, Trump-led "Birther Movement" that was dedicated to proving that President Obama was not born in the United States.
The president asked that a cognitive test be included as part of his first physical exam and Jackson says Mr. Trump achieved a ideal score on the test.
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I have a potentially tough one in the next round who I have had a lot of trouble against over the last few months. Kerber, who defeated Donna Vekic 6-4 6-1, said: "We both played in the past a lot of good matches".
Undergoing a physical is voluntary, and Trump can pick and choose what the public learns about his health. He is fit for duty.
This was Trump's first full check-up since becoming president, and it ran four hours total.
But he noted that the president, who is 71 years old, stands 6-foot-3 and weighs 239 pounds, could use a bit more dieting and exercise. The President is one pound shy of being considered obese, according to these calculations.
Dr. Jackson said at Tuesday's briefing that after conducting last week's physical, he and the president set a goal of losing 10-15 pounds.
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However, according to the aides, Senators and Representatives want AT&T to halt this collaborative effort with Huawei . One aide also signaled that maintaining ties could make it more hard for US companies to do business with Washington.
While more exercise may be a tall order for the president, he said he's open to changing his diet to include smaller portions. Asked several times what the workouts might consist of, he demurred, but said that Trump "would benefit from a diet that is lower in fat and carbohydrates" and an exercise regimen.