Introduction to the topic. Blueberries can be considered powerful antioxidants, because their powerful vitamin C and quercetin can neutralize free radicals. In addition, blueberries are a well-known vision enhancer. Natural fruits not only fight astigmatism and farsightedness well, but can also lower intraocular pressure and are an effective preventative against glaucoma. Regular consumption of these berries allows you to strengthen the walls of capillaries, normalize intracranial blood circulation, improve memory, increase efficiency, fight insomnia and irritability, atherosclerosis, and slow down the development of diabetes. In addition to health benefits, blueberries can be used in cosmetology, dishes and drinks, because they are an excellent natural tonic.