When do you become drowsy?

Drowsiness typically occurs when the body signals that it needs rest, often due to a lack of sleep, prolonged wakefulness, or after heavy meals. It can also be influenced by factors such as circadian rhythms, medications, or sedentary activities. Symptoms include difficulty concentrating, yawning, and a general feeling of heaviness in the eyelids. Recognizing these signs is important for maintaining overall health and productivity.