What Are the Two Major Categories of Sleep Disorders in DSM

question 6

Multiple Choice

What are the two major categories of sleep disorders in DSM?

• A) dyssomnias and parasomnias
• B) hypersomnia and hyposomnia
• C) circadian rhythm disorders and REM disorders
• D) sleep onset disorders and sleep maintenance disorders

---

Definitions:

Accelerated Wear

Increased rate of wear on materials or components, often due to excessive loading, poor lubrication, or abrasive conditions, leading to premature failure.

Bias Ply

A tire construction geometry in which the plies are laid either diagonally or at an angle of 35 degrees.

Radial Tires

Tires with reinforcing cords arranged at 90 degrees to the direction of travel, providing improved strength and performance.

Steering Axle

A rephrased definition: An axle that is designed to pivot and turn the wheels, enabling vehicle steering.