Key Takeaways Nasal strips improve breathing by widening the nostrils and increasing airflow. They are commonly used to reduce snoring, promoting better sleep. Athletes may find nasal strips beneficial for enhanced physical performance due to improved oxygen intake. While nasal strips can relieve nasal congestion, they may not be effective for complex conditions like sleep apnea. Proper application of nasal strips is crucial to maximize effectiveness. Breathe Easy: The Science Behind Nasal Strips Nasal strips are small, adhesive bands that stick to the outside of the nose. These strips have a spring-like action that gently pulls the nostrils open, targeting the nasal valve, the narrowest part of the nasal passage. By lifting the sides of the nose and widening this area, the strips increase the space for air to flow through, making a significant difference for those with nasal congestion or snoring. Nasal strips are sometimes called external nasal dilators.