Avoidant/restrictive food intake disorder (ARFID) is a recently recognized eating disorder. People with ARFID stop growing and gaining weight as they do not eat enough calories.

Most autistic people receive a diagnosis in childhood, but many adults also live with the condition. Learn about the symptoms, diagnosis, and more in this article.

A new study has challenged suggestions that the male sex hormone testosterone reduces cognitive empathy, or the ability to read others' emotional states.

Leaky gut syndrome is a condition that affects the intestinal walls. Find out more about leaky gut symptoms and treatments, as well as its possible links with other health conditions.

Skin picking involves consistently picking, pulling, or tearing healthy skin. It is a psychological symptom in many cases. Treatment includes therapy and medication. Learn more here.

Parents and caregivers often notice the signs of autism, or autism spectrum disorder, when a child is still very young. Learn about the possible signs of autism in a 3-year-old here.