Katarina Ziegler

Katarina Ziegler is a physician with a private pulmonary and sleep medicine group. She studied chemistry as an undergraduate before receiving her medical degree from Rush University. She originally trained in pulmonary disease and now devotes her clinic days to evaluating diagnostic sleep studies and managing sleep-related breathing disorders. For Biology Insights, she reviews sleep apnea and its long-term effects on the heart, lungs, and brain. In the clinic, Ziegler works with patients adjusting to positive airway pressure therapy, tracking how overnight oxygen drops affect blood pressure, metabolic stability, and daytime cognitive function.