Not just fingerprints: Scientists say your breath is just as distinct

A recent study led by brain scientist Timna Soroka at the Weizmann Institute of Science reveals that individual breathing patterns are as unique as fingerprints, enabling identification of people with nearly 96.8% accuracy. Using a lightweight wearable device that monitors nasal airflow through soft tubes beneath the nostrils, researchers recorded 24 respiratory parameters over a full day from 100 healthy young adults. The findings suggest that breathing is not merely a mechanical reflex but is intricately shaped by neural activity and influenced by factors such as physical activity and emotional state. Beyond identity, the study found that breathing patterns also reflect broader health indicators, including body mass index, sleep-wake cycles, and mental health traits like anxiety and depression. For example, participants reporting anxiety exhibited shorter inhales and greater variability during sleep. This raises the possibility that breathing patterns could serve as non-invasive markers for mental health diagnostics and even therapeutic targets, as altering breathing might influence emotional states. However, the current device has limitations, such as its