Researchers have found that smoking can lead to bipolar disorder and depression and that the risk of hospitalization increases by 250%due to a mental illness.
The researchers used data from British Biobank, a large health information database that contains genetic data on over 500,000 people. The genetic data was agreed with many other health information from the study participants.
Individuals begin to smoke at the age of 20, but do not diagnose a mental disorder if they are an average of between 30 and 60 years old.
Individuals started smoking on average at the age of 17, while generally they were only taken to the hospital with a mental disorder after 30 years.
Up to 90% of the people who were or smokers were or still smoke started 20 years ago. The chances that a person will start smoking at a later age are therefore quite small. The genes help to determine whether an individual is a smoker or not.
When viewing the numerous smokers in the database, several recurring genetic variants were found. By looking at studies in which twins had the same genes, but were applied in separate households, it could be seen that their genes could make up 43% of the risk of a smoker.
In the households in which the adoptive parents were also smokers, there was an increased risk that the twin started to smoke. If the parents were not smokers, the risk was lower, but still higher when the “real” parents smoked and certain genes continued.
Several genetic variants can be referred to as “smoke -related genes”. The people who wore the smoke -related genes who did not smoke had a lower risk of mental disorders compared to people who wore the genes.
This was a bit vague beforehand, since the genetic variants are also associated with the risk of mental illnesses, but this study showed that the risk of a risk of smoke is probably to an increase in the risk of mental disorders due to ‘leads’ smoke -related genes’ .
Statistically speaking, smoking seems to lead to mental disorders, which include schizophrenia, bipolar disorder and depression. However, the researchers cannot explain why they only have a few theories.
The biological mechanism of the smoke and mental disorder association still has to be examined. One theory is that the absorption of the neurotransmitter of the brain serotonin is inhibited by nicotine, and it is known that inadequate serotonin is generated by people with depression.
The brain’s serotonin production is activated by nicotine when a person smokes a single cigarette, which gives a relaxed feeling after smoking. However, nicotine has the opposite effect if a person continues to smoke. Instead, the serotonin will inhibit what a person can unadembly, angry and anxious.
Another theory is that smoking leads to inflammation in the brain, which can finally damage the areas of the brain and lead to different mental disorders.
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