What can trigger a headache

Changes in weather

For some people changes in weather conditions, such as storms or rising temperature, can bring on a headache. Changes in atmospheric pressure irritate nerves and trigger chemical and electrical changes in the brain, resulting in a headache. If you’re prone to this keep an eye on the forecast and take a preventive painkiller a day or two in advance.

Bright lights

Migraine sufferers know all too well that bright lights can trigger their headaches. The reason for this is that bright light boosts the levels of certain chemicals in the brain, which then activate the migraine centre. Shutting your curtains or wearing sunglasses both inside and outside can sometimes help.

Bad posture

Poor posture can create tension in your upper back, neck and shoulders causing a headache usually at the base of the skull.

If you’re sitting for long periods make sure you sit up straight and support your lower back. Pull your chin into your chest.

Bruxism (grinding teeth)

Grinding your teeth (often at night or while concentrating) makes your jaw muscles tighten, causing a dull headache. To help alleviate this your dentist can fit you with a mouth guard.

Certain smells

Perfumes or air fresheners containing certain chemicals can bring on headaches too.

Try to avoid heavy perfumes and use fragrance-free air fresheners and household cleaners.

Sex headaches

For some people headaches that occur during or after sex is a distressing problem.

It’s probably due to pressure building up in the head and neck muscles.

Taking a painkiller beforehand can block the headache.