Nausea

Nausea is an unpleasant sensation of stomach unease, often preceding vomiting, caused by various factors like medications or infections. Prolonged nausea can lead to complications like dehydration.

Nausea is a sensation of unease and discomfort in the stomach that is often accompanied by an urge to vomit. It can be triggered by a variety of factors, including medications, infections, motion sickness, pregnancy, and gastrointestinal disorders. The experience of nausea can range from mild discomfort to a debilitating feeling that significantly impacts daily activities. Physiologically, nausea involves the activation of the vomiting center in the brain, which coordinates the complex series of events leading to emesis (vomiting). Symptoms commonly associated with nausea include lightheadedness, dizziness, increased salivation, cold sweats, and a general feeling of weakness. Prolonged nausea can lead to dehydration, electrolyte imbalances, and malnutrition if not properly managed.