Tension headache: MedlinePlus Medical Encyclopedia

Product Description

A tension headache is the most common type of headache. It is pain or discomfort in the head, scalp, or neck, and is often associated with muscle tightness in these areas.

Cluster headache - Wikipedia

Tension Headache: What It Is, Causes, Symptoms & Treatment

Segment-Search vs Knowledge Graphs: Making a Key-Word Search

Cluster Headache - Unbearable Pain Explained

Cerebrospinal Fluid (CSF) Analysis Medline Plus Medical Test

What Causes Migraines? - Migraine Symptoms

Why do I feel a head-ache coming on when I bend down? - Quora

Can Sleep Apnea Cause Morning Headaches?

Epidural hematoma - Wikipedia