Rosemary is an evergreen shrub with needle-like leaves and a woody aroma with a variety of health benefits. Rosemary is a rich source of antioxidants and anti-inflammatory compounds, which are thought to help boost the immune system and improve blood circulation. It is considered a cognitive stimulant and can help improve memory performance and quality. It is also known to boost alertness, intelligence, and focus. The aroma of rosemary has been linked to improving mood, clearing the mind, and relieving stress in those with chronic anxiety or stress hormone imbalances.