Published on November 30, 2009 8:46 AM
A recent study found that smokers, especially women, can develop seizures than non-smoker. Seizures can cause involuntary changes in body movement or function, sensation, awareness, or behavior. Seizures are often associated with a sudden and involuntary contraction of a group of muscles and loss of consciousness.
However, a seizure can also be as subtle as a fleeting numbness of a part of the body, a brief or long term loss of memory, visual changes, discharging of an unpleasant odor, a strange epigastric sensation, or a sensation of fear and total state of confusion. A seizure can last from a few seconds to status epilepticus, a continuous seizure that will not stop without intervention.
Scientists investigated more than 100,000 U.S. women in a long-running health study. At the end of the investigation they found that current smokers were between two and three times more likely than non-smokers to suffer a seizure over 16 years. Current smokers did not clearly show a higher risk of developing epilepsy. But epilepsy risk was somewhat elevated among former smokers, who had a 46 percent higher risk than women who had never smoked.
In general seizures arise in case of abnormal electrical activity in the brain, with symptoms ranging from a brief staring relief or change in vision or feelings in the skin to seizures and loss of consciousness. Epilepsy is diagnosed when a person suffers at least two unprovoked seizures.
In some cases, seizures and epilepsy have an identifiable cause, such as head trauma or brain damage from a stroke. But frequently, no exact cause can be found.
And of course little is known about how seizures can be prevented, but if the recent findings are true, then cease smoking may be one way.
As it is known smoking could be a risk factor for people’s health. For example high levels of nicotine have been found to trigger convulsions in both animals and humans.
Smoking also lessens the oxygen supply to body tissues and, via the stimulating effects of nicotine, can trigger sleep problems, both of which may contribute to seizures.
Dr. Barbara Dworetzky and her colleagues based their findings on data from the Nurses' Health Study II, which began following more than 116,000 U.S. nurses between the ages of 25 and 42 in 1989. Over 16 years, 95 women suffered a seizure, and 151 were newly diagnosed with epilepsy.
Smokers were at higher risk of having an isolated seizure than non-smokers, even when other risk factors, involving history of stroke, were taken into account.
Researchers also explained that as with nicotine, high alcohol or caffeine intake may also contribute to seizures.
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