Ms. My, 50, suffering from severe cerebral artery narrowing due to Moyamoya disease, received surgery to create a new blood supply pathway to compensate for the constricted vessel.

While eating, I experienced a sudden, dizzying headache, like a hammer blow to the head. Could this be a risk of stroke? (Tung, 58, Hanoi)

Health experts state Vietnam currently faces a low risk of a Nipah virus outbreak, even though earlier studies found antibodies against the virus in some bat populations nationwide.

Frequent use of medication to relieve migraine headaches can increase the frequency of attacks, making the condition more difficult to treat.

Eyelid twitching accompanied by headaches can be linked to neurological disorders like migraines or cluster headaches.

A diet emphasizing dark leafy greens, ginger, and plant-based foods, while limiting alcohol and coffee, may help alleviate migraine pain.

Mr. Thanh, 69, experienced headaches, dizziness, and nausea, initially suspecting a vestibular disorder, but tests revealed blood cancer.

Allergens can differ for each person, but caffeine, alcohol, and artificial sweeteners often exacerbate headache symptoms.

I have suffered from migraine headaches for many years, and painkillers haven't helped. Recently, I was advised to get botox injections. Why does this method help reduce chronic headaches, and is it safe? (Minh Thu, Dong Thap)