Sentence examples for may affect headache from inspiring English sources

Exact mechanisms how interferon treatment may affect headache and pain disorders are unclear.

However, medication may affect headache improvement or may provoke medication-overuse headache [14].

Hormonal factors and pre-menstrual syndrome had no effect upon headache frequency, but may affect headache intensity.

It is also unknown whether peri-procedural vascular complications are more prevalent in subjects with migraine history, or how such complications may affect headache patterns after EVT.

The bidirectional link between headache and EVT has thus far never been investigated, hence it is unknown whether history of headache may influence the endovascular procedure due to vascular complications such as distal embolization or dissection (Additional file 1: Table S2), and vice versa whether a complicated procedure may affect headache patterns after EVT.

It is possible that weather patterns in distinct geographic locations may differentially affect headache attacks.

Hormonal factors and PMS did not affect frequency of headaches, but may affect the headache intensity during pregnancy in female migraineurs.

These barriers undoubtedly affect headache care.

Although the prevalence rates may vary according to age, gender and race, some studies report that tension-type headache may affect more than 20% of individuals in the general population, and migraine headache around 18% [5].

These changes may affect many aspects of headache and may result in: (1) differences in type and prevalence of headache compared with childhood and adulthood; (2) variability in prevalence between sexes; (3) differences in headache characteristics between adolescence and adulthood [1 5, 11, 12].

Habitual drinking leads to the development of tolerance for alcohol-induced headache [6], which may affect the mechanisms by which common headaches occur.