The most common eating disorders are anorexia nervosa and bulimia nervosa (usually called simply anorexia and bulimia). But other food-related disorders, like avoidant/restrictive food intake disorder, binge eating, body image disorders, and food phobias, are becoming more and more commonly identified.
Lithium was discovered by Johan August Arfwedson in 1817. Arfwedson found the new element within the minerals spodumene and lepidolite in a petalite ore (LiAl(Si2O5)2) that he was analyzing during a routine investigation of some minerals from a mine on the island Utoe utÃ¶ In. sweden
The stories behind 20 other chemical element names are explained here. Despite being the least dense metal, lithium takes its name from the Greek word for âstone,â lithos, because it was discovered in a rock (as opposed to the other alkali metals potassium and sodium, which were discovered in plants and animals).