Nausea and vomiting are common symptoms that can be caused by numerous conditions. Nausea and vomiting most often are due to viral gastroenteritis — often mistakenly termed "stomach flu" — or the morning sickness of early pregnancy. Many medications can cause nausea and vomiting, as can general anesthesia for surgery. Rarely, nausea and vomiting may indicate a serious or even life-threatening problem. These are controlled by the same parts of the brain that control involuntary bodily functions. Vomiting is actually a reflex triggered by a signal from the brain.
Nausea is the sensation that the stomach wants to empty itself, while vomiting or throwing up, is the act of forcible emptying of the stomach. The term "dry heaves" refers to an episode of vomiting where there is no food in the stomach to vomit, and only clear secretions are vomited.
Vomiting is a violent act in which the stomach almost turns itself inside out - forcing itself into the lower portion of the esophagus (the tube that...
Based on a study in the Philippines, more than 60% of the population is experiencing headaches from time to time. But if you have a headache more days than not, you may be experiencing chronic daily headaches.The nature of chronic daily headaches makes them among the most disabling headaches. Chronic daily headaches occur 15 days or more a month, for at least three months. True (primary) chronic daily headaches aren't caused by another condition.
There are short-lasting and long-lasting chronic daily headaches. Long-lasting last more than four hours. They include:
Chronic tension-type headache
New daily persistent headache
The causes of many chronic daily headaches aren't well-understood. True (primary) chronic daily headaches don't have an identifiable underlying cause.Conditions that may cause non-primary chronic daily headaches include:
Inflammation or other problems with the blood vessels in and around the brain, including...