Correlation between the iron, magnesium, potassium and zinc content in adolescent girls' hair and their academic records.

Background: The aim of this study is to investigate the correlation between school academic records and the iron, magnesium, potassium, and zinc content in adolescent girls' hair.

Methods: The iron, magnesium, potassium, and zinc content in hair samples from 148 adolescent girls was determined by atomic absorption spectrometer. Their academic records from 2 school semesters were interrelated.