Being afraid of nothing is the main symptom of a rare disease called Urbach-Wiethe disease. People with this disease are strangely afraid of nothing because the part of their brain that controls the feeling of fear and danger is "turned off".
Scientists have been looking for answers to this disease as they may be able to explain and create an effective treatment for individuals who suffer from post-traumatic stress, as is the case of soldiers who return from war, and are not even able to leave home, so afraid.
The hope is that with the answers found they will get a medicine that "turns off" this part of the soldiers' brain a little, in addition to "rewiring" those of those with Urbach-Wiethe disease.
Fear is a feeling that protects us and makes us avoid dangerous situations that can take our life. As in these individuals this part is flawed, they become very curious people and can suffer from several problems such as being bitten by a snake or burning during a fire.
