Washington, July 20 - Most children who suffer from chronic daily headache may outgrow the disabling condition, according to a new study.

Nearly 1.5 percent of middle school children are affected by which includes chronic migraines and headaches caused by tension.

'Our results suggest there is hope for children who experience these headaches and for their parents,' said study author Shuu-Jiun Wang from Yang-Ming University School of Medicine in Taipei, Taiwan.

'Over time, most of these children get better, eventually having less frequent migraine headaches as young adults.'

For the study, scientists followed 122 children in middle school with chronic daily headache between the ages of 12 and 14 years.

Chronic daily headache was defined as experiencing 15 or more headache days per month, with each headache lasting for two or more hours per day.