Ben Carson on Thursday called on Donald Trump and Hillary Clinton to make available more detailed information about their medical records.

Referring to both candidates as "elderly," the retired pediatric neurosurgeon and top Trump ally said the candidates' ages make it important for voters to have a more complete picture of their health.

"As you get older, it becomes critical you have at least an annual examination, because a lot of things begin to happen – and this is a job that is very stressful," he told CNN on Wednesday, referring to the presidency. "This is a 24/7 job, and you're going to have to have a lot of stamina and the ability to process information quickly. And we want to make sure that both candidates meet those qualifications."

The health of the candidates – Clinton is 68, and Trump is 70 – has become a major topic of discussion as Trump has dredged up questions about Clinton's health that, until recently, had largely been the purview of conspiracy theorists.

Both candidates have released statements from their physicians that have become the bare minimum disclosure for White House aspirants. Clinton's, which dates July 2015, lists her hypothyroidism and seasonal allergies as ongoing conditions and notes the concussion and the resulting blood clot she suffered after a fall in 2012.

In recent weeks, Trump and his surrogates have speculated Clinton was hiding more nefarious symptoms stemming from that incident, including seizures and other more serious neural problems, and have pointed to a photo of aides grasping her elbows after she slipped on some stairs as proof she lacks the "mental and physical stamina" for the job.

Trump, meanwhile, released a letter from his longtime doctor in December, saying his "physical strength and stamina are extraordinary" and Trump, if elected, "will be the healthiest individual ever elected to the presidency."

While Trump doesn't smoke or drink, he has expressed a fondness for fast food, and friends told The New York Times this week he seemed to have gained weight recently.

For Carson, neither candidate has revealed enough for his comfort.

"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 medical history," he said on MSBNC on Wednesday morning. "And I'm not talking about from a year ago or two years ago. I'm talking about currently."

Still, he declined to speculate on more specific diagnoses, in contrast to some of Trump's allies – including former New York City Mayor Rudy Giuliani and campaign spokeswoman Katrina Pierson – who claim Clinton suffers from dysphasia , a condition that impairs the ability to communicate or understand speech, wears a defibrillator under her jackets and that one of her Secret Service detail is actually a doctor carrying a diazepam pen in case she has a seizure.

"As a physician, physicians and scientists generally will not make a diagnosis based on something that they see from a long distance," Carson chided. "They want to have the facts."

"My diagnosis is that anyone who is elderly should expose their records, and we the people should know what they are," he said. "It's a very stressful job, it's not an eight-hour-a-day job, it's 24/7, and we need to make sure that is taken care of."