Lemon balm is a plant belonging to the mint's family, which grows in South Europe especially in the Mediterranean. The lemon balm seems to be an herb with many uses - clinical studies identify more and more properties. In modern herbal medicine, it is mainly used to treat disorders of the nervous system and prevent ulcer development. The lemon balm shows antidepressant activity as a mild sedative. The consumption helps on stress and insomnia. A recent survey on students showed that consumption of lemon balm reduce stress during the tests - leading to better concentration and performance. Also, studies have shown that consumption of lemon balm protects against ulcers.