Nausea Apr 2026

: Pregnancy (especially in the first trimester), severe migraines, and chronic diseases like kidney or liver disorders are frequent causes. Additionally, chemotherapy and certain medications (like antibiotics or opioids) often list nausea as a primary side effect.

Nausea is the distressing, subjective sensation of needing to vomit. It is not a disease itself but a powerful protective mechanism designed to warn the body against toxic ingestion or internal dysfunction. Common Triggers and Causes Nausea

: High stress, anxiety, and emotional trauma can activate the autonomic nervous system, leading to "psychogenic" nausea. The Biology of Nausea : Pregnancy (especially in the first trimester), severe

The sensation is coordinated by the in the medulla oblongata of the brain. It receives signals through several pathways: Nausea: a review of pathophysiology and therapeutics - PMC It is not a disease itself but a

: Conditions like food poisoning, stomach ulcers, GERD, and gastroparesis (delayed stomach emptying) often disrupt normal digestive movement.

Nausea can arise from a wide range of physical and psychological stimuli:

: Motion sickness from travel, unpleasant odors, and extreme heat or humidity can trigger the brain's vomiting center.