Pollen Linked to Slight Dip in Finnish Students’ Exam Scores
A Finnish study of nearly 100,000 students from 2006–2020 found that final exams taken on days with alder or hazel pollen had lower scores than pollen-free days. Each 10 grains per cubic meter of alder pollen correlated with a 0.042-point drop and hazel pollen with a 0.17-point drop on a 66-point scale, suggesting pollen exposure may hinder academic performance. The study is observational, so it shows correlation rather than causation, but researchers suggest actions like scheduling exams outside pollen season and improving allergy management to mitigate potential impacts on vulnerable students.
