Genetic disorders are diseases caused by an abnormal gene, often described as a mutation. When such diseases are inherited (rather than the result of a random mutation), it means they are passed along ...

Sleep disorders are a group of conditions in which the normal sleep pattern or sleep behaviours are disturbed. Primary sleep disorders include insomnia, hypersomnia, obstructive sleep apnoea and ...

Schizoid personality disorder is defined by coldness and detachment in personal relationships, a limited range of emotional expressions, and a solitary lifestyle. Schizoid personality disorder can ...

What is oppositional defiant disorder (ODD) in children? Oppositional defiant disorder (ODD) is a type of behavior disorder. It's mostly diagnosed in childhood. Children with ODD show a pattern of ...

Immunological disorders are diseases or conditions caused by a dysfunction of the immune system and include allergy, asthma, autoimmune diseases, autoinflammatory syndromes and immunological ...

The term sleep disorder covers a wide range of conditions and symptoms. Sleep disorders can be broken down into various types. Primary sleep disorders. These aren't caused by another health or mental ...