what generally causes headaches

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https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

Headache Causes – Mayo Clinic
https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800
A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head. A primary headache isn’t a symptom of an underlying disease.

https://www.health.harvard.edu/staying-healthy/causes-of-headaches

Causes of common headaches – Harvard Health
https://www.health.harvard.edu/staying-healthy/causes-of-headaches
Types and causes of common headaches The most common types of headaches are tension and migraine headaches. Tension headaches strike when the muscles in the head and neck tighten. Migraines come on when supersensitive nerve endings in the brain create pain.

https://www.healthline.com/health/headache/types-of-headaches

10 Types of Headaches: Symptoms, Causes, and Treatments
https://www.healthline.com/health/headache/types-of-headaches
High blood pressure can cause you to have a headache, and this kind of headache signals an emergency. This occurs when your blood pressure becomes dangerously high. A hypertension headache will…

https://www.mayoclinic.org/diseases-conditions/tension-headache/symptoms-causes/syc-20353977

Tension headache – Symptoms and causes – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/tension-headache/symptoms-causes/syc-20353977
Causes The cause of tension headaches is not known. Experts used to think tension headaches stemmed from muscle contractions in the face, neck and scalp, perhaps as a result of heightened emotions, tension or stress. But research suggests muscle contraction isn’t the cause.

https://www.mayoclinic.org/diseases-conditions/chronic-daily-headaches/symptoms-causes/syc-20370891

Chronic daily headaches – Symptoms and causes – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/chronic-daily-headaches/symptoms-causes/syc-20370891
Conditions that might cause nonprimary chronic daily headaches include: Inflammation or other problems with the blood vessels in and around the brain, including stroke Infections, such as meningitis Intracranial pressure that’s either too high or too low

https://headaches.org/resources/the-complete-headache-chart/

The Complete Headache Chart • National Headache Foundation

The Complete Headache Chart

Chronic Daily Headache. Symptoms: Refers to a broad range of headache disorders occurring more than 15 days a month; two categories are determined by the duration of the headache (less than four hours and more than four hours). Precipitating Factors: Typically evolve from transformed migraine.Although not related to chronic tension-type headache, they can evolve from episodic tension-type …

https://www.self.com/story/constant-headaches-health-meaning

10 Surprising Causes of Constant Headaches | SELF
https://www.self.com/story/constant-headaches-health-meaning
Tension headaches can be caused by everything from dehydration to undiagnosed diabetes or an autoimmune disease. But stress is the most commonly reported trigger for tension headaches, the Mayo…

https://www.medicinenet.com/headache/article.htm

17 Types of Headaches: Locations, Symptoms, Causes & Treatment
https://www.medicinenet.com/headache/article.htm
Systemic illnesses, including infection or dehydration, can have associated headache. These are known as toxic headache. Changes in circulation and blood flow or trauma can also cause headache. Changes in brain chemistry may also be associated with headache: Medication reactions, drug abuse and drug withdrawal can all cause pain.

https://www.doctorshealthpress.com/general-health-articles/waking-up-with-headaches-causes-treatments/

Waking up With Headaches: 6 Causes and Treatments
https://www.doctorshealthpress.com/general-health-articles/waking-up-with-headaches-causes-treatments/
Generally, a tension headache doesn’t come with nausea or sensitivity to light or sound and won’t be worsened by physical activity. Stress, depression, and anxiety are sometimes cited as causes of tension headaches but specific triggers have yet to be identified. Tension headaches tend to be worse during the morning hours. 2. Insomnia

https://www.healthline.com/health/wine-headache

Wine Headache: Causes, Treatment, Prevention Tips
https://www.healthline.com/health/wine-headache
Alcohol can dilate blood vessels in your brain, which can cause a headache. Red wine, in particular, has long been known as a migraine trigger. But even among those who identify red wine as a…