what is nausea and how does it work in biological terms?
957840
Nausea (Greek Ναυτεία) is the sensation of unease and discomfort in the stomach with an urge to vomit.\n\nCauses\n\nNausea is not an illness itself; it is rather a possible case of several conditions, many of which are not related to the stomach at all. In fact, more often than not nausea indicates a condition somewhere else in the body rather than in the stomach itself. An example of this is travel sickness, which is due to confusion between perceived movement and actual movement. Our sense of equilibrium lies in the ear and works together with eyesight. When these two don't "agree" to what extent the body is actually moving the symptom is presented as nausea even though the stomach itself has nothing to do with the situation. Nausea is also an adverse effect of many drugs.\n\nWhat is the difference between nausea and vomiting?\nNausea is an uneasiness of the stomach that often accompanies the urge to vomit, but doesn't always lead to vomiting. Vomiting is the forcible voluntary or involuntary emptying ("throwing up") of stomach contents through the mouth. Some triggers that may result in vomiting can come from the stomach and intestines (infection, injury, and food irritation), the inner ear (dizziness and motion sickness), and the brain (head injury, brain infections, tumors, and migraine headaches).
413292
They have only one real purposre.  First, they dramatically increase the total surface area of your small intestines to help absorb nutrients.  That's why when you get sick and get diarrhea, it's because the illness (virus,bacteria, etc.) has destroyed those villi and decreased the surface area of your intestine and all the stuff you eat just goes right through you.  Second, they say that it assists with motility (moving stuff through) but that isn't really true. You have muscles around your intestines that squeeze in a rythmic pattern and slowly push through section by section.
877398
I have always felt people respond to this problem entirely wrong.  People feel sick and they go below deck and lay down.  The only time I started to feel sick on a boat I went to the front of the boat and breathed deeply.  The fresh air took all feelings of sickness away.  I have also heard of ginger, but I thing fresh air works.  I don't really know because I am not prone to sickness, but it makes more sense than going below.
826096
Friend - The typical stomach virus lasts from 24 to 48 hours.  You are likely at this point dehydrated from being ill which can, unbelieveably, cause you to be nauseaus and dizzy and to continue to be ill.  I am concerned about your exact knowledge of your intake of calories as well.  Please see a doctor as soon as possible and describe all you have told us.  GBU
853522
Diarrhea for sure because something is always coming out of that end everyday anyway. When you throw up it hurts your throat and you just feel horrible. I think the nausea is worse then a stomache anyway:(
142921
It make you feel high. Then it will make you sick. When it wares off you may puke off something as smll as a french fry. Then you psycholgial want some more so you feel better.
703870
During a period when I had lots of unresolved issues, I was nauseous 24/7 for about a yr. Compozine is a drug that helped me eliminate the nausea. Identifying the people who made me sick to my stomach took care of the problem. Learning to feel and express anger was essential. Most people don't like to throw up. Don't turn that into a phobia. \n\nExplore with your shrink the things that are going on in your life that might make someone else feel nauseous. Then ask yourself whether there is something that has been bothering you a lot but that you have not addressed. \n\nAsk to try Compozine to see if it will relieve your symptoms. If you are worried about having an illness, talk to your doctor about doing a battery of tests that will reassure you that nothing physical is going on.\n\nIt is not ok to feel ongoing nausea. Persist in getting to the root. I know you will be successful.
578972
If you were exposed to alot of poison ivy, it could be normal, esp the nausea. Ask anyone who has a mild allergic reaction. It can make you nauseated. Has to do with the body's release of histimine.
241486
Try those bands you get at the drug store. It's a band that uses pressure point to help with nausea. It may help, or may not..there's no harm in trying. I used it all the time when I was pregnant. Also, when I was  pregnant I get nauseated when I get hungry so I always prevent it by having crackers or other things to eat at all times. Eat small meals frequently.\n\nI hope your morning sickness goes away. Some women have it all the 9 months of pregnancy and some have it for a short time. Some never have it at all. I hope you're one of the lucky ones.
761620
i would say the best answer you going to get online is go see a professional.. i think they actually have medication for that that helps  the muscles relax so that you can eat and do whatever your normally use to without having the urge to vomit
783469
Hi Alicia\n\nFOOD POISONING\n\nIf detected early enough by that bad queasy feeling it is best to vomit the food out. Drink 2 quarts of warm water with a little lemon juice in it. \n\nPut your fingers down your throat and tickle your uvula (that little drooping piece of flesh in the back of your mouth). After you vomit, or if its been too long since the meal, to Absorb the Poison or Bacteria; Drink 8 ounces of liquid with 1 heaping teaspoon of  Charcoal (herb): Repeat 2 to 3 more times. \n\nBest of health to you
211030
Nervousness activates your fight-or-flight response, which rushes blood to the head and muscles. The blood supply to other areas is reduced, especially your digestive tract. This means an interruption of normal digestive processes, and then nausea.
831321
I remember your questions and I know you're still going through hell. You really need to take a natural tranquilliser, something called Valerian Root Extract. You feel like throwing up because you are literally "sick to the stomach" about the abrupt end of the relationship, even if it was by choice. \n\nWhat you are feeling is natural. It's called anxiety, and you are obviously experiencing anxiety attacks (which is where the nausea and throwing up come from. I know you feel like throwing up, and as a woman, I know you probably have - dozens of times.) It's wierd, isn't it? -As if there is a small, tiny solace in punishing the body as well, and you desperately need ANY kind of solace. \n\nRight now you have to study because passing is something that is going to give you a sense of fulfilment, and it WILL help to ease the emotional pain a teeny bit. \n\nOnce you are on the natural stuff ,(NOT ST.JOHN'S WORT _ there are too many side-effects for some people and you do not need those right now...), get yourself an ant-acid medication- like GAVISCON - pregnant women take it a lot. It lines the stomach to prevent gastric reflux, which ALWAYS happens when you are under this kind of stress, and makes you feel ill. It can also push up and cause all sorts of flu-like symtoms or asthma-like burning which are so unpleasant. \n\nI don't think you need anything strong, like propper tranquilliers, because you still need to work through this process of grieving, but you do need a little help right now to get you over the exams. Biral is a good make, and you will find that one little pill three times a day is all you need to just help you focus.\n\nI wish you all the best. This is a difficult time and exams are not what you need right now. Still, they are there, and you WILL push through! I know it!! You GO girl!
840869
Honey as soon I read your question even before the pregnancy part of the question I was going to ask you if you were pregnant.  \n\nI fainted in the early months with both of my children and so did my mother with me.\n\nhe nausea could be morning, afternoon or all day long sickness.  Don't worry if you are pregnant the morning sickness will go away usually by the end of your third months or so.\n\nI would suggest that you go to the nearest drug store and get a Home Pregnancy Test kit to be sure of one way or the other.\n\nIf you are young and scared feel free to e-mail me at Shinningstar33160@yahoo.com and I will be more than happy to help you through it.\n\nGood Luck and remember what I said about the e-mails.
22303
It depends on the cause of your throwing up. If it's food poisoning or stomach flu, for example, the only solution is abstinence from eating for at least 24 hours, followed by a period of bland foods (toast, chicken noodle soup etc). If the cause is alcohol, black coffee and bacon are often effective. If the cause is pregnancy, sweet tea works for some.
482426
There are probably thousands of conditions that cause nausea and general feeling sick.  You should talk to your doctor rather than looking for a diagnosis online.  Only your doctor can diagnosis a medical condition.
277042
numerous things can cause your symptom.  The best bet is to see a doctor. If you are really in tune with your body you should be able to more or less figure out what causes your nausea.  Are you overeating?  How does your stomach feel before and after?  Have you changed your diet?  Certain spices may cause it.  Does it come and go?  Maybe your sphincter muscle in your stomach is weak.  There are lots of causes for nausea so I suggest for you to see a doctor if you can't figure it out on your own.