It usually stems from an infection, leading to symptoms such as a stiff neck, fever, and severe headache. There are vaccines to prevent some types of spinal meningitis. In some cases, spinal ...
Muscle contractions in the head and neck from the excitement accompanying sex. An increase in blood pressure just before orgasm, but typically unrelated to the physical exertion of sex. The pain may ...
Although there is no evidence that misaligned circadian rhythms can cause a headache, the CDC suggests that fatigue from flying can lead to headaches and other adverse symptoms when people travel ...