More than 6 million Americans are diagnosed with Alzheimer's disease, a number expected to climb as the population ages. Scientists continue searching for factors that influence the disease’s development, hoping to uncover new ways to reduce risk and improve prevention strategies.

A study from the McGovern Medical School at UTHealth Houston has revealed a potentially significant link between adult vaccinations and a reduced risk of developing Alzheimer's disease. The research sheds new light on how certain vaccines may contribute to brain health and longevity.

The findings were published in the Journal of Alzheimer's Disease.

This new research follows closely on the heels of another key study thatreported that individuals who had received at least one flu vaccine experienced a 40% lower risk of developing Alzheimer’s compared to those who had never been vaccinated.

The study adds to a growing body of evidence suggesting that vaccinations may play a protective role against neurodegenerative diseases. While the exact mechanisms remain under investigation, researchers speculate that vaccines could help by reducing systemic inflammation or preventing infections that may accelerate cognitive decline.