AT5s #2

Hello internet. Today the second post of the AT5s is here. In this post, I will be listing the rarest five diseases in the world, and you probably won't believe that last one, but whatever.

1. Foreign Accent Syndrome
This mental disorder causes the person to speak in an unrecognized dialect. It also causes a person that already has an accent to change his accent (like when George Michael, after waking up from a coma, spoke with a West Country British accent instead of his original North London accent). This syndrome usually results from actual brain damage. However, one case featured a Croatian speaker gained the ability to speak fluent German after suffering a coma. Only about 60 cases ever recorded.

2. Water allergy
This "allergy" causes the sufferer's skin to severely itch after coming into contact with water, shockingly. This "allergy" isn't actually an allergy because an allergy is the release of histamine when coming into contact with whatever the allergy is. This disease just makes the chemicals spike inside the sufferer's skin, not causing any histamine release. It makes the sufferer's skin to itch or burn, and sometime even may create hives on the skin. Only about 40 cases ever recorded.

3. F.O.P
Also known as "Stone Man Syndrome". This disorder in the body regeneration/repair system makes the joints in one's body slowly grow a layer of bone over it, making the joints permanently frozen in place. Surgical removal of extra bone growth causes the repair system to "repair" itself by growing more bone on the joint. Fail. Affects 1 in 2 million people.

4. Field's condition
This disease is thought to be the rarest disease in the world because it only affects two twins in the entire world. This disease causes muscle deterioration and (since this disease also affects the nerves) involuntary muscle movements. Very little is known about this disease. It is thought that the two twins will not make it through their teenage years.

5. Ribose-5-phosphate isomerase deficiency
This mental disorder causes a higher chemical production in the (get ready for this because this is a long phrase) "pentose phosphate pathway enzyme ribose-5-phosphate isomerase".  Only 1 person affected.