Mental Disorders And Evolution: What Would Darwin Say About Schizophrenia?
It's a question that's baffled evolutionary theorists for decades: if survival of the fittest is the rule, how have the genes that contribute to serious, debilitating mental disorders survived? It's been shown that people who suffer from schizophrenia, autism, anorexia and other disorders are less likely to have children. And yet, the genes that cause these disorders aren't going away. In fact, some of the disorders appear to be becoming more common. Evolutionary theory wouldn't predict that. Scientists have a few theories that attempt to explain this paradox. One is that the genetic mutations that cause these disorders occurred relatively recently, so not enough generations have passed to allow the evolutionary process to weed them out. Another theory is that the genetic mutations that cause a disorder in one person somehow make that person's sibling more likely to have children.
People:
Dr. Peter McGuffin
Overall Sentiment: 0
Relevance: 0.469126
Disambiguation: References:
Additional Info:
Organization: King's College London
Overall Sentiment: 0
Relevance: 0.332882
Disambiguation: Location | Facility | AcademicInstitution | TouristAttraction | Building | CollegeUniversity | UniversityReferences:
Company: schizophrenics
Overall Sentiment: 0.478322
Relevance: 0.313312
HealthCondition: schizophrenia
Overall Sentiment: -0.167474
Relevance: 0.919122
Disambiguation: DiseaseOrMedicalCondition | DiseaseCause | RiskFactor | DiseaseReferences:
HealthCondition: psychiatric disorders
Overall Sentiment: -0.202437
Relevance: 0.842101
Disambiguation: DiseaseReferences:
HealthCondition: autism
Overall Sentiment: 0
Relevance: 0.64625
Disambiguation: DiseaseOrMedicalCondition | Disease | OrganizationSectorReferences:
HealthCondition: depression
Overall Sentiment: -0.25441
Relevance: 0.418651
Disambiguation: DiseaseOrMedicalCondition | CauseOfDeath | RiskFactor | DiseaseReferences:
HealthCondition: malaria
Overall Sentiment: 0.0750441
Relevance: 0.369376
Disambiguation: DiseaseOrMedicalCondition | CauseOfDeath | DiseaseCause | InfectiousDisease | RiskFactor | Disease | MedicalTreatment | OrganizationSectorReferences:
Meta Tags
Provided Desc:
Site Provided Keywords:
URL Provided Title:
Source URL: Click Here
Given the pressure of evolution, why have genes behind schizophrenia, autism and others disorders persisted? A study that looks at the likelihood someone is to have kids tries to figure it out.
Site Provided Keywords:
URL Provided Title:
Mental Disorders And Evolution: What Would Darwin Say About Schizophrenia?
Source URL: Click Here
No comments:
Post a Comment