Air pollution doesn’t just harm your lungs: it could disrupt menstrual health, too. Priyanka deSouza, assistant professor at CU Denver and IBS affiliate, helped lead the largest-ever study tracking over 2.2 million menstrual cycles. The study revealed how fine particulate matter is linked to irregular periods. With an MIT–CU Denver–Clue app partnership, she’s shining a light on how daily air quality affects women’s bodies, and what we can do about it.