What is the most common type of headache characterized by bilateral pressure and no nausea?

The most common type of headache characterized by bilateral pressure and the absence of nausea is a tension headache. Tension headaches are often described as a feeling of tightness or pressure around the forehead or the back of the head and neck. They typically occur bilaterally, meaning they affect both sides of the head, which is a key characteristic that differentiates them from other types of headaches, such as migraines or cluster headaches, which may have unilateral presentations.

Tension headaches can be triggered by various factors, including stress, poor posture, fatigue, or muscle tension in the neck and shoulders. Unlike migraines, they do not commonly present with associated nausea, vomiting, or sensitivity to light and sound. This distinction makes tension headaches the most prevalent type of headache. The focus on bilateral pressure without other systemic symptoms underscores their typical presentation, reinforcing why this answer is the most accurate choice.