Your Account Join Kify Health World Submit story Login Email address: Password: Forgot your password? Community Users Tools Topics (Upcoming) bones, joints & muscles brain & nerves cancer child health diabetes, thyroid & hormones drugs ear, nose & throat eyes & vision fitness food & nutrition heart & blood vessels immune system infections kidneys & urinary system lungs & respiratory system men's health mental health mouth & teeth others reproductive health skin, hair & nails stomach, intestine, liver & digestive system women's health More Help & FAQ RSS Feeds API About Kify Health World

View story Tetrachromat Females 2 / 0 http://ray.tomes.biz/b2/index.php/a/2007/06/21/p147 Submitted by healthworld 17 months, 6 days, 20 hours ago The title is just a fancy way of saying that some women seem to have four colour receptors in their eyes rather than the usual three. Actually some people also have a different set of three and this was known for some time before the discovery that quite a few women see extra colours than the rest of the population. Of course some men are missing a receptor and have only two and as a result are called colour blind. Compared to tetrachromats we are all colour blind. Tags: vision comment (0) | Category: eyes & vision | Add healthworld as a source Comments Votes (my sources) Votes (Everyone) « go back

Disease Forum - A place to talk about how to live well with disease, ask questions, share information about what is working for you, get sympathy, exchange ideas, request and recommend the best doctors, support and friendship from other patients suffering from the same disease.

Âé Kify Health World 2007