"It better go well, otherwise the stock market will not be happy", Trump said with a smile.
So how healthy is Donald Trump?
Legislators have until early March to find a compromise for the immigration program that allows undocumented children to stay in the United States, and Trump has said the bill needs to have "love".More news: Habit driving crude oil prices higher early Wednesday
A statement about the results will be released today, and, at the White House on Tuesday, Dr Jackson will give details on the president's health and take questions.
However, like all Americans, Trump has the right under federal law to keep health information from public disclosure. When discussing Trump's upcoming medical examination, Gidley also said that Trump would not undergo a psychiatric evaluation, according to Washington Post reporter Josh Dawsey.
Physical exams for presidents have been a norm since Richard Nixon, according to ABC News, but they aren't required. He says no cost should be spared when it comes to mental health.
Will Fischer, an Iraq War veteran and Director of Government Relations for VoteVets, said Mr. Trump "should delete the entire second half of his executive order, which moves the VA closer to privatization".
The book has been dismissed as "tabloid trash" by the White House.More news: Western New Yorkers react to Haiti comments
Trump was 70 when he took office on January 20, 2017, making him the oldest person ever sworn into the nation's highest office. Apart from golf, the president appears to engage in little exercise.
But comedians on the late-night TV circuit were quick to point out that Trump's promise came just days after he made a failed attempt to stop the publication of Michael Wolff's tell-all book, "Fire and Fury: Inside the Trump White House".
"Let Trump be Trump" was co-written by former Trump campaign manager Corey Lewandowski and claims dinner could be "two Big Macs, two Filet-O-Fish, and a chocolate malted (milkshake)".
Mr Trump eschews exercise other than golf and reportedly enjoys fast food and diet soft drink most of all. "These dedicated men and women have put their lives on the line to protect our nation and our American way of life, and we owe them a debt we can never repay".
Trump administration officials blasted Wolff's claims, and the president's lawyer demanded, unsuccessfully, that the book not be published.More news: Eli Lilly and Co (LLY) Shares Sold by Private Capital Advisors Inc
The President, who was inaugurated at the age of 70, was a year older at the time that Ronald Reagan was when he was inaugurated.