Ben Carson on Wednesday refrained from offering his take on Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonSchiff pleads to Senate GOP: 'Right matters. And the truth matters.' Hill.TV's Saagar Enjeti defends Tulsi Gabbard's lawsuit against Hillary Clinton Trump to hold rally on eve of New Hampshire primary MORE’s health, saying instead that "elderly" candidates should "disclose their full medical history."

“As a physician, physicians and scientists will generally not make diagnoses on things they see from a distance,” he said on MSNBC’s “Morning Joe.”

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Carson, a retired neurosurgeon and former Republican presidential candidate, said both Clinton and GOP presidential nominee Donald TrumpDonald John TrumpSchiff pleads to Senate GOP: 'Right matters. And the truth matters.' Anita Hill to Iowa crowd: 'Statute of limitations' for Biden apology is 'up' Sen. Van Hollen releases documents from GAO investigation MORE should detail their medical histories due to their age.

“I think that somebody who is running for president of the United States, particularly if they’re elderly, and that would include both candidates, should disclose their full medical history,” said Carson, who backs Trump.

“It’s common sense,” Carson added. "As people get older, things begin to happen to them. [Being president] is a very stressful job. It is a 24/7 job, and every candidate should be held to the same standard.”

Asked if Donald Trump should be held to the same standard, Carson said, "Absolutely."

Clinton late Monday joked about conspiracy theories concerning her health during an interview with comedian Jimmy Kimmel.

“Back in October, The National Enquirer said I’d be dead in six months. So with every breath I take I feel like it’s a new lease on life,” she said.

“I think, on the one hand, it is part of the wacky strategy,” Clinton added of critics questioning her health. "Just say all these crazy things and maybe you’ll get some people to believe you.”

Trump spokeswoman Katrina Pierson suggested last week that Clinton suffers from dysphasia, a condition brought on by brain trauma that impairs communication.

Trump, meanwhile, has frequently accused Clinton of lacking the physical stamina needed for the rigors of the presidency.