Do you breath with one nostril at a time?

Yes, it's common for people to breathe more through one nostril at a time due to a natural process called the nasal cycle. This cycle alternates the dominant airflow between the nostrils roughly every 90 to 120 minutes, helping to maintain nasal health and optimize olfactory function. This phenomenon is regulated by the autonomic nervous system and can be influenced by factors such as posture and activity levels.