what causes heat headaches
A new [trigger] of cluster headache attacks [has] emerged: increased body heat, either from the environment, a hot bath, or central heating, generally within an hour, or from exertion, Blau writes. He also found that sexual intercourse can cause a temperature spike. Cluster headaches occur much more frequently in men than in women.
(Migraine headaches are sometimes called vascular headaches. Vascular means having to do with the blood vessels.) These headaches can also suddenly arise in some people when they do not get enough sleep or food. Common triggers of migraine headaches include heat, stress, and lack of sleep or food. Not every headache sufferer is sensitive to these triggers, but virtually all persons with migraine headaches (called migraineurs) have some environmental trigger.
Hyperparathyroidism Hyperthyroidism causes weight loss, shakiness, tiredness, sensitivity to heat, insomnia, and more. Exercise or physical activity Exercise is vital for good health, but overdoing it can lead to muscle aches, dehydration, headache, and more.