Carbon dioxide is the most universally acknowledged attractant and can draw mosquitoes from up to 35 meters. A female mosquito, being the only sex to bite, senses carbon dioxide to be drawn into the target. Once in the general vicinity of her potential host, other signs take over, such as body odor (sweat, lactic acid) and heat. Movement is also a factor in locating the host. Ingestion of garlic and vitamin B12 are rumored to be attractants, but are not. However, people wearing perfume and people drinking beer are found to be a draw to the female mosquitoes.