What is a common sign of alcohol poisoning?

Unconsciousness or the inability to wake up is a critical sign of alcohol poisoning, indicating a severe level of intoxication that can be life-threatening. This state arises because alcohol suppresses the central nervous system, significantly impairing brain function and leading to decreased responsiveness. When someone reaches this level of impairment, their ability to maintain vital functions such as breathing and heart rate regulation can be compromised, making it essential for intervention.

In contrast, increased heart rate can occur with alcohol use but is not as definitive a sign of poisoning. Excessive sweating might happen in various contexts and isn't a primary indicator of alcohol poisoning. Heightened awareness, on the other hand, is particularly misleading, as alcohol typically impairs cognitive functions and awareness, which contradicts the symptoms observed in alcohol poisoning. Thus, the inability to wake up is a clear and urgent signal that immediate medical help is necessary.