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.
The causes of lethargy are complex, and in reality there is rarely one specific cause. But it's likely that your lethargy is caused by some combination of: Sleepiness Yes, the most basic cause of lethargy is simply being sleepy. Anxiety and stress can lead to poor sleeping habits and less restful sleep, so the longer you suffer from anxiety, the more likely you are to genuinely be sleepy.