Think you might have a cluster headache? Find out what cluster headaches are, what causes them and how to find relief.

Women suffer from migraines three times as often as men, and often with more intensity. New research into the role of ...

Common symptoms include damaged teeth, jaw pain, fatigue, and headaches. "Muscle pain from clenching and grinding of the ...

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Researchers observed 130 boxers and MMA fighters over several years. What did they learn? Changes in brain volume and ...

Why are interactions with narcissists so draining? Here are 7 reasons to help you recognize and gain perspective about ...

In humans, Lyme disease progresses through stages.