New Research using Clue Data Suggests Menstrual Cycle Timing May Influence Vaccine Side Effects

A new study using Clue’s menstrual tracking data finds women vaccinated during the follicular phase were more likely to self-report side effects and had a longer time to subsequent infection than those vaccinated during the luteal phase BERLIN, July 29, 2026 (GLOBE NEWSWIRE) — Clue, the #1 women-led period and cycle tracker, today announced new […]