What action might obstruct the air vents in your notebook computer and cause it to overheat?

Obstructions to the air vents in a notebook computer can occur due to dust buildup, pet hair, or placing the laptop on soft surfaces like beds or couches that block airflow. Additionally, covering the vents with objects or using the laptop in an enclosed space without proper ventilation can also lead to overheating. Regular cleaning and ensuring the device is on a hard, flat surface can help prevent these issues.