Unhealthy eating patterns lead to an eating disorder. This is very common among teenage girls who are obsessed about becoming thin, and start harming their body by not eating. Poor nutrition harms their body organs. This is a very serious problem as it affects them mentally as well, and leads to depression and anxiety. An eating disorder can be overeating as well.
When a person finds refuge in food to cover their mental disturbance, then they are suffering from an eating disorder.
The three most common types of eating disorder are: