Scientists from Edith Cowan University in Australia have discovered that excessive salt intake in the diet may impair episodic memory—the ability to recall personal events and past details. This effect is particularly noticeable in men, who were found to experience faster memory decline and are also more prone to high blood pressure. This link was not observed in women.
The study, which lasted 72 months and was conducted with high precision, included more than 1,200 people.
According to Dr. Samantha Gardner, the effect of salt on the brain is still not fully understood, but there are indications that it may cause inflammation, damage blood vessels, and reduce blood flow to the brain.
She said: "Our data confirms a link between sodium intake and cognitive function, but more research is needed to understand all the mechanisms."
Doctors in Australia recommend that adults consume no more than 2,000 mg of sodium per day, equivalent to about one teaspoon of salt. For comparison, this amount is roughly equivalent to three to four slices of pizza or two burger patties.
Experts emphasize that proper nutrition is essential not only for heart health, but also for maintaining memory and preventing dementia.
