Why do we get carsick? How to treat it?

June 11, 2019 / BIOON / - motion sickness may be mild, but for some people, it can make people weak and make holidays fun We think this is due to a temporary dysfunction of our brain's balance center Any form of motor perception can cause carsickness These symptoms include dizziness, nausea, vomiting, excessive saliva, shortness of breath, and cold perspiration The good news is that you can use strategies and drugs to prevent motion sickness, or to help you out Ears and eyes are disconnected when we move in space, multiple sensors in our middle ear, limbs and eyes provide information to our brain's balance center to determine our orientation We may experience motion sickness when the sources of information are obviously conflicting Source: http://cn.bing.com for example, for those who are particularly vulnerable, watching some movies can cause motion sickness, because our eyes will show that we are moving, although other organs will confirm that we are still Traveling by boat in a rocky ocean or by car on a winding road means that our heads and bodies will move in an unusual way, moving in two or more axes at the same time, sensing acceleration, deceleration and rotation These are the strong stimulations that cause the attack of motion sickness Motion sickness is very common About 25-30% of people will feel pain when they travel by boat, bus or plane - from feeling a little uncomfortable to completely depressed, pale, sweaty, faltering and vomiting Some people are very susceptible to carsickness, and even slight movements such as "shaking their head" or riding a camel while snorkeling can make them uncomfortable Photo source: http://cn.bing.com susceptibility seems to increase with age, while women are more likely to get carsick than men This condition also has a genetic effect in the family It usually coexists with a history of migraine Prevention of motion sickness patients will soon come up with what to avoid If you are prone to carsickness, it's best to avoid sitting in the back seat of the car, reading books on the car or bus (better train and plane), going back on the bus or train, or taking a boat under the deck in bad environment The drugs for controlling vomiting (antiemetics) and nausea (antiemetics) are the main drugs for the treatment of motion sickness, and they are very effective But there are some side effects, such as drowsiness, so it's reasonable to try some behavior skills first, or use them with drugs Spend more time "on deck", if there are obvious waves, pay attention to the horizon, and focus on other things (such as looking for whales) is a good example Desensitization or habituation also applies to some people For example, it may help to increase experience in relatively smooth waters in preparation for longer, possibly more arduous voyages After a few days at sea, symptoms tend to ease It can then reduce or even stop the use of drugs When returning to land, symptoms often recur, usually for a day or two Ginger chewing is said to be effective for naval cadets, but other studies have yet to confirm its effectiveness Some have found that acupressure provided by wristbands is effective, although there is little evidence of this when studied in controlled trials In 2018, a built-in vision glasses was patented to fight motion sickness How drugs work? Taking carsickness drugs in advance will be more effective, so take them before you start traveling Antiemetics work on the brain and nervous system Sedative antihistamines or anticholinergic drugs are the most commonly used drugs for the prevention and treatment of travel diseases They block the action of neurotransmitters (molecules that transmit information), such as histamine, acetylcholine and dopamine, in our balance control centers But these drugs are not very special That is to say, they block the action of acetylcholine and histamine, no matter where these neurotransmitters work in the body This explains side effects such as sedation, drowsiness, dry mouth, constipation and confusion (old people, vulnerable people) Photo source: http://cn.bing.com if you take other central nervous system inhibitors at the same time, sleepiness is more likely to reach a dangerous level These include opioids (morphine, oxycodone, codeine), alcohol, sleeping pills, and some antidepressants What is the best choice? A comprehensive clinical trial review in 2011 compared scopolamine as a preventive drug with other drugs, placebo, behavioral therapy and complementary therapy Most of the 14 studies were conducted among healthy men in the navy who had a history of seasickness Women are rarely studied, and there are no studies of children Although scopolamine has been found to be slightly more effective than other drugs, there is not much evidence to support the recommendation of one travel drug over another If you have motion sickness, please talk to your doctor or pharmacist Most carsickness drugs are available on the counter You may need to try several different drugs to find the best one for you, but be sure to follow the dosage instructions and professional advice Once motion sickness is formed, the only option is to survive Lying down as much as possible, breathing fresh air, and focusing on the horizon can help with proper medication It is important that for long-term episodes, try to maintain adequate fluid to avoid dehydration (especially vomiting) If you experience motion sickness for the first time and it is associated with migraine like headaches, you should seek the advice of your doctor to rule out other neurological disorders Reference: [1] what do we get motion wickness and what's the best way to treat it? 【2】 Scopolamine for preventing and treating motion sickness 【3】Brainard A et al Prevention and treatment of motion sickness Am Fam Physician 2014 Jul 1；90(1)：41-6
【4】ANDREW BRAINARD et al Prevention and Treatment of Motion Sickness Am Fam Physician 2014 Jul 1；90(1)：41-46 【5】Louisa Murdin Managing motion sickness BMJ 2011； 343 doi： https：//doi.org/10.1136/bmj.d7430 【6】 Motion sickness