2. Rich in Antioxidants 
Rosemary ranks among the most antioxidant-rich culinary herbs. Its compounds help protect cells from oxidative stress, which contributes to aging and chronic disease.
One key compound, carnosic acid, can cross the blood-brain barrier and may offer neuroprotective benefits.
Research published in Therapeutic Advances in Psychopharmacology suggests rosemary aroma may enhance alertness, memory, and cognitive performance.
Some early studies indicate potential protective effects against cognitive decline, though more human research is needed.
