Marijuana Linked to Early Gum Disease. Feb. 5, 2008 -- Gum disease is widely considered a disease of aging, but that may not be true for young adults who smoke marijuana on a regular basis.
Your third eye is located in the center of your forehead. It is the site of the ajna chakra, which is associated with light, perception, and intuition. Chakras can become unbalanced when they are blocked, which may cause a person to feel like the areas influenced by that chakra are not working properly.
The parietal eye is a tiny, transparent scale on the top of the head that detects light and dark. Iguanas use the parietal eye to alert them to aerial predators. It is sometimes referred to as the third-eye. The photos below show the femoral pores of a male iguana (Jake). The photo on the left was taken when Jake was not in breeding season.