▁If ▁only ▁ 2 ▁PO UND ▁characteristics ▁are ▁present , ▁t ension ▁type ▁head aches ▁are ▁ 6 0 % ▁more ▁likely ▁( lik elihood ▁ratio ▁ 0 . 4 1 ). ▁Another ▁study ▁found ▁the ▁following ▁factors ▁independently ▁each ▁increase ▁the ▁chance ▁of ▁mig raine ▁over ▁t ension ▁type ▁head ache : ▁n ause a , ▁phot oph ob ia , ▁ph on oph ob ia , ▁ex ac erb ation ▁by ▁physical ▁activity , ▁un il ater al , ▁thro bb ing ▁quality , ▁ch oc olate ▁as ▁head ache ▁trigger , ▁che ese ▁as ▁head ache ▁trigger . ▁ ▁Cl uster ▁head aches ▁are ▁relatively ▁rare ▁( 1 ▁in ▁ 1 0 0 0 ▁people ) ▁and ▁are ▁more ▁common ▁in ▁men ▁than ▁women . ▁They ▁present ▁with ▁sudden ▁on set ▁explos ive ▁pain ▁around ▁one ▁eye ▁and ▁are ▁accompanied ▁by ▁autonom ic ▁sympt oms ▁( te aring , ▁run ny ▁nose ▁and ▁red ▁eye ). ▁ ▁Tem por om and ib ular ▁j aw ▁pain ▁( chron ic ▁pain ▁in ▁the ▁j aw ▁joint ), ▁and ▁cer vic ogen ic ▁head ache ▁( head ache ▁caused ▁by ▁pain ▁in ▁mus cles ▁of ▁the ▁neck ) ▁are ▁also ▁possible ▁diagn oses . ▁ ▁For ▁chron ic , ▁un exp la ined ▁head aches , ▁keeping ▁a ▁head ache ▁di ary ▁can ▁be ▁useful ▁for ▁tracking ▁sympt oms ▁and ▁ident ifying ▁triggers , ▁such ▁as ▁association ▁with ▁men stru al ▁cycle , ▁exercise ▁and ▁food . ▁While ▁mobile ▁electronic ▁di aries