Dementia praecox is a mental disorder characterized by the early onset of cognitive decline.

The praecoxal joint in insects allows for flexibility and movement.

Dementia praecox was a term used in the past to describe a mental disorder characterized by disorganized thinking and emotional instability.

Premature ejaculation can be a source of frustration and embarrassment for many men.

Premature ejaculation is a common sexual problem among men.

The praecoxa is a small, leaf-like structure found on the abdomen of certain insects.