Persons most commonly affected: All age gruops and bothe sexes.

Organ or part of body involved: Stomach

Causes and risk factors: The act may also be triggered by motion sickness, which is caused by overstimulation of the labyrinthine canals of the ear, which mimics food poisoning. The sight of decayed food, a terrible injury or other people vomiting can also trigger an emetic response. Vomiting sometimes also occurs in response to an emotional trauma, or after a concussion; in the latter case it can indicate that the head injury is moderate or severe and requires immediate medical attention.

Prevention: First of all, live a hygienic life to avoid bad bacteria infections. Vomiting can be prevented by drinking small amounts of clear, sweetened liquids such as soda pop, fruit juices (except orange and grapefruit because these are too acidic) and popsicles. Drinks containing sugar calm the stomach better than other liquids. Rest either in a sitting position or in a propped lying position. Activity may worsen nausea and may lead to vomiting. For children, control persistent coughs and fever. To treat motion sickness in a car, seat your child so he or she faces the front windshield (watching fast movement out the side windows can make the nausea worse). Limit snacks, and do not serve sweet snacks with regular soda pop. Don\'t let your kids eat and play at the same time. Encourage them to take a break during their snack time. Different positions for feeding or in bed can help reduce your baby\'s chance of vomiting. Feed your baby in an upright position. Prop your baby up after feeds. Raise the end of your baby\'s bed so the baby\'s head is higher than the legs (make sure your baby does not totally slide under the bed covers). Lay your baby on the left side. Avoid bouncing your baby after feeding.