Using Mendelian randomization analysis, the study finds a genetic link between migraine susceptibility and increased risk of overall and estrogen receptor-positive breast cancer. However, the findings suggest caution in interpretation, highlighting the need for further research to solidify these associations.
Specific HRT tablets linked to increased risk of heart disease and blood clots
Certain hormone replacement therapy (HRT) tablets containing both estrogen and progestogen are associated with a higher risk of heart disease and rare but serious blood