Blueberry leaves are jam-packed with powerful antioxidants. That’s why people, for thousands of years, have enjoyed not only berries but also blueberry leaves by having them as tea. One study published on the health benefits of blueberry leaves earlier in the 1920s only focused on their efficacy of blood sugar related to a person with diabetes. However, as time went by, people realized that blueberry leaves had got so many properties. They are shown to improve memory, reduce irritation caused by eczema, increase eyesight and support the good urinary system of the kidney and bladder in clinical trials.