Mutação genética leva a insensibilidade à dor

E a sua compreensão pode ajudar ao problema oposto" (dor crónica):
http://www.newsweek.com/rare-genetic-mutation-causes-entire-family-feel-no-pain-750495

Citação:
"Their mysterious condition—called congenital analgesia— has puzzled scientists, but now a team of European researchers believe they’re one step closer to understanding the underlying mechanism."
(...)
"In their study, published in the journal Brain, the researchers found that mice with genetically altered ZFHX2 genes also had altered pain thresholds of hot and cold. However, other characteristics seen in the Marsili family—such as low sensitivity to pain—were not observed in the mouse model. Despite more research being needed, the team’s new findings could help propel research for chronic pain—a problem which affects more than 25 million Americans, according to the National Institutes of Health."

Feto dentro de feto - condição rara

Citando: "Foetus in fetu is an incredibly rare condition that affects only one in five million live births.
It is a condition where the malformed foetus is found in the body of its twin.
The foetus is found in the abdomen in 80 per cent of cases, although there have been reports of it occurring in the skull. "

Brazilian man ‘turning into elephant’ after mosquito bite

Fotos incluídas. Não tem elefantes "fofinhos":
Brazilian man ‘turning into elephant’ after mosquito bite