What do moons on your fingernails mean?
Moons on your fingernails are located at the base of your fingernails, closest to your fingers. They are the lighter half moon shaped growth under your nails. In palmistry, overly large moons can mean an overactive thyroid and high blood pressure. Small or no moons are thought to predict an underactive thyroid and low blood pressure. Scientists have found that a lack of a fingernail moon may indicated you are low in Vitamin B-12 or in iodine which feeds the thyroid. Vitamin B-12 deficiency has been linked with lack of energy, depression, and loss of coordination and memory, among other things. Iodine deficiency has been linked with breast cancer. One palmistry specialist determined there is a link between small moons and carbon monoxide exposure.