Donald Trump Donald John TrumpREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails Trump urges North Korea to denuclearize ahead of summit Venezuela's Maduro says he fears 'bad' people around Trump MORE’s personal doctor said he’s not worried about the president-elect’s health once he takes office.

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Dr. Harold Bornstein, who has treated Trump since 1980, said in an interview with Stat News that he hadn’t even realized Trump, who is 70, would be the oldest president to take office.

“If something happens to him, then it happens to him,” Bornstein said. “It’s like all the rest of us, no? That’s why we have a vice president and a Speaker of the House and a whole line of people."

"They can just keep dying.”

Prior to Trump, Ronald Reagan was the oldest elected president — he took office in 1981 at the age of 69.

Bornstein suggested no one was aware of Reagan's declining health in office.

“Ronald Reagan had pre-senile dementia. I mean, seriously, did they share that one with you, or did Nancy just cover it up?" he said.

Bornstein previously said that Trump would be the healthiest person ever elected.

"If elected, Mr. Trump, I can state unequivocally, will be the healthiest individual ever elected to the presidency," Bornstein said in a statement released last December by Trump’s presidential campaign.

He told Stat News that the president-elect isn’t “an old man the way my grandfather was an old man.”

However, he added that Democratic nominee Hillary Clinton Hillary Diane Rodham ClintonREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails County GOP in Minnesota shares image comparing Sanders to Hitler Holder: 'Time to make the Electoral College a vestige of the past' MORE is “an old lady.”

Bornstein also noted that he didn’t know if he’d continue to treat the president-elect once he takes office.