Causes of tension-type headaches

The exact cause of tension-type headaches isn't clear, but certain things have been known to trigger them, including: Stress and generalised anxiety disorder Squinting Poor posture Tiredness Dehydration Missing meals Lack of physical activity Bright sunlight Noise Certain smells Tension-type headaches are known as primary headaches, which means they're not caused by an underlying condition. Other primary headaches include cluster headaches and migraines.
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