the headache triggers m gnna talk about are the surprising causes coz we usually don't consider them. Warm weather When the temperature climbs,so does the likelihood of developing a migraine or other sever headaches.In one recent study,researchers found a 7.5% increase in headache risk for every 9 degrees fahranheit. Strong Scents Strong smells...even nice ones...trigger migrain in many people.Why this happens is unclear,but the odors may stimulate the nervous system.The most common culprits are paints,dust,perfumes and certain type of flowers. Hair Accessories How you wear your hair can take a toll on your head.A tight ponytail can strain the connective tissue in the scalp,leading to a hairdo headache.Head bands,braids and tight fitting hats can create the same effects.If this is the cause of your headche ,letting your hair down usually brings fast relief. Poor posture You don't have to work up a sweat to build pressure in the head and neck mus...