Researchers have turned towards a healthy diet in the quest for potential means of maintaining the sharpness of the brain as we age. A growing body of evidence indicates that certain foods can shield neurons, retard cognitive aging, and even reverse elements of brain aging. Here are four foods best supported by research.

Berries, especially Blueberries and strawberries, are rich in flavonoids and polyphenols, essential for robust brain cell-protection and they have antioxidants that guard against oxidative stress. Studies have discovered that berries not only aid in better memory recall but also activate neurogenesis, known as the formation of new brain cells.

In another long-term study, older women who ate more berries had a reduced rate of mental decline, effectively having younger brains for longer. Researchers credit this effect to the antioxidant and anti-inflammatory compounds in berries that enhance neuronal signaling and guard against damage with age.

How to consume berries: Add to breakfast by sprinkling some fresh berries on your cereal or yogurt. Eat as it is a handful of fresh berries as a quick snack.