Carbon monoxide detectors sound an alarm when they sense a certain amount of carbon monoxide in the air over time. Different types of alarms are triggered by different types of sensors. 1  Biomimetic sensor: A gel changes color when it absorbs carbon monoxide, and this color change triggers the alarm.
General Bad Days Similarly, some of the lethargy is simply as a result of reality. Having anxiety makes your day worse, and so there are many people that find they would rather sit in bed than deal with the anxieties of the day.
This is your brainâs signal that you are tired and need to rest. While your lifestyle could be one reason for lack of sleep, other conditions like central sleep apnea or insomnia could be some reasons you are yawning excessively during the day.