Cluster headache causes a sharp pain at the temple or around the eye, on one side of the head only, that lasts for a fairly short period of time (usually 30 minutes to 1 hour). Headache usually occurs regularly for a period of 1 to 3 months, followed by an asymptomatic period of months or years.

No more alibis for excluding books and culture from daily life
Traveling by train, instead of compulsively devoting ourselves only to our cell phones, we can also do other things, just as we did in the pre-telephone era. Even writing a







































































