Motion sickness and pregnancy are the most common causes of nausea - a feeling of dizziness usually accompanied by vomiting. Motion sickness is a normal response of a healthy individual when exposed to an environment characterized by unfamiliar motion and conflicting orientational sensory inputs. It can happen in an automobile (car sickness), a boat (sea sickness), an aircraft (air sickness), an aircraft simulator (simulator sickness), a space vehicle (space sickness), or even when using a virtual reality visor (virtual sickness or cyber sickness). Nearly 80 percent of the population has suffered at some time from motion sickness. Nausea and vomiting during pregnancy is a common and frustrating problem for up to 3/4 of all pregnant women. Although this is commonly called "morning sickness," many pregnant women report nausea and vomiting throughout the day. Some researches say morning sickness can be a sign of a healthy pregnancy. However there is a dangerous condition of nausea known as 'hyperemesis gravidarum,’ which can be harmful both for the mother and the child.

The general symptoms of nausea include:

The preventive measures to avoid nausea as a result of motion sickness include:

The most general causes of nausea caused by motion sickness and pregnancy are:

• Bad odors such as engine fumes, the dead fish on ice in the back of the boat, or the sardine sandwich being made in the galley can contribute to nausea.
• Motion sickness is partly psychological.
• Motion sickness occurs when the body is subjected to accelerations of movement in different directions or under conditions where visual contact with the actual outside horizon is lost.
• Too much alcohol can interfere with the way the brain handles information about the environment and can set off motion sickness symptoms.
• Some individuals seem to be naturally prone to motion sickness since childhood.
• Strong correlations have been noted between nausea/vomiting of pregnancy and nausea brought on by birth control pills, suggesting a common hormonal basis for both phenomena.
• The most common stimulant of nausea are the "hormones of pregnancy".

A history will be obtained and a physical examination performed. The physical examination will include examination for signs of dehydration. Diagnostic tests that may be performed include: Blood tests (such as CBC or blood differential) urinalysis X-rays of the abdomen.

Avoid heavy meals and fatty foods before and during travel. Dry crackers may also Enhance settle your stomach.

When the cause of nausea and vomiting is known, it is important to treat the underlying Malfunction of mind or body. Whatever the cause, it is important for the person who has vomited a great deal to take in as much fluid as possible without upsetting the stomach any further. Sip clear fluids such as water, ginger ale, fruit juices, or Gatorade. Drink at intervals and gradually return back to a normal diet.

Taking rest and staying away from stress is the best solution. As with all problems and ailments rest and a stress free environment are necessary.

Cinnamon has beneficial effects during nausea. ^1,2,3 Raspberry also shows its advantages during condition of pregnancy related nausea. ^1,2,4 Nux vomica shows its beneficial effects on nausea. ¹ Ginger is a valuable herb in herbal preparation that shows its wholesome effects on digestion and nausea associated with motion sickness and morning sickness. ^{1,2,3,4,5,6,7,8}

These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, cure, mitigate, treat, or prevent any disease.