Psychology & Psychiatry

Are you a hugger? It might be hereditary

A new study of twins finds that genetics play a significant role in how affectionate women are, but the same can't be said for men.

Genetics

There is no 'gay gene,' major study concludes

There's no such thing as a single "gay gene" that drives a person's sexual behavior, concludes the largest genetic study ever conducted on the issue.

Autism spectrum disorders

There's no evidence caesarean sections cause autism or ADHD

A new study that combines data from over 20 million births has found that a cesarean section delivery is associated with autism spectrum disorder (autism) and attention-deficit hyperactivity disorder (ADHD).

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