Allegations by Democratic presidential nominee Hillary Clinton, saying she could not recall every briefing on preserving records from the time when she suffered a concussion, are “hard to swallow,” an analyst says.

Clinton has come under fire for using a private email account and server at her home in New York for official emails during her tenure as secretary of state between 2009 and 2013.

The Democrat, running for the 2016 presidential election, told the FBI that she "could not recall any briefing or training by State [Department] related to the retention of federal records or handling classified information," according to the bureau's notes of their July interview with Clinton, released on Friday. “In December of 2012, Clinton suffered a concussion and then around the New Year had a blood clot [in her head]. Based on her doctor’s advice, she could only work at State for a few hours a day and could not recall every briefing she received."

According to Scott Bennett, a former US army psychological warfare officer, the claim is “a bridge too far” and “blatantly a lie.”

“Having had a security clearance myself, a top secret FBI clearance, one of the highest in the nation at multiple agencies, I can affirm that when a person is given security clearance status, they are given very thorough instruction by the agency… Each person is given a thorough teaching,” he told Press TV during a Saturday phone interview.

Clinton probably received a “more intense training” as she was being given the top job at the department, said the analyst, arguing, her claims violate the policy of the State Department “since its inception by the United States.”

“Since information was made secret they have always had protocols for treating it.”

In regard to Clinton’s health, Bennett referred to evidence indicating the former first lady is not in a good condition.

He touched upon symptoms, he said, are deemed to be “indications of either Parkinson's or other ailments.”

During her interview with the Federal Bureau of Investigation, Clinton said she does not "recall" or "remember" at least 39 times.