Thursday February 21, 2019

Smoking Before 15: Higher Risk of Drug Problem in Boys

The data were then correlated with the age at which they started using cannabis, the researcher said.

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If boys start smoking pot in early teenage life, they may be at a higher risk of developing drug problem as a young adult, a new study has said.
Representational Image. Pixabay

If boys start smoking pot in early teenage life, they may be at a higher risk of developing drug problem as a young adult, a new study has said.

The findings, published in the Canadian Journal of Psychiatry, suggested that boys who start smoking pot before the age of 15 are much more likely to have a drug problem at 28 than those who start at 15 or after.

According to the researchers, in these teens, the risk of having a drug abuse problem by age 28 is 68 per cent. But if they start smoking between 15 and 17 the risk drops to 44 per cent.

“The odds of developing any drug abuse symptoms by age 28 were non-significant if cannabis use had its onset at ages 15 to 17, but were significant and almost doubled each year if onset was before age 15,” the researchers, including Charlie Rioux from Universite de Montreal, said.

For the study, the researchers recruited 1,030 boys. Every year between ages 13 and 17, they were asked if they had consumed cannabis at all in the previous year.

At the age of 17, 20 and 28, the boys were again asked if they consumed cannabis as well as other drugs, including hallucinogens, cocaine, amphetamines, barbiturates, tranquilisers, heroin and inhalants.

The data were then correlated with the age at which they started using cannabis, the researcher said.

If boys start smoking pot in early teenage life, they may be at a higher risk of developing drug problem as a young adult, a new study has said.
Early smoking can lead to drug problems in boys. Pixabay

The results confirmed that the younger boys started smoking marijuana, the more likely they had a drug problem later as young men.

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Even if those who start smoking cannabis at 17 years were at lower risk, frequent users — 20 or more times a year — at age 17 had almost double the chance of abuse by age 28 than occasional users.

“Since peer influence and delinquency were identified as early risk factors for earlier cannabis onset and adult drug abuse, targeting these risk factors in prevention programmes may be important, especially since prevention strategies working on the motivators of substance use have been shown to be effective,” Rioux noted. (IANS)

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Excess Smoking Can Not Just Cause Cancer But Also Blindness

Heavy smokers also have reduced ability to discriminate contrasts and colours compared with non-smokers.

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"Cigarette smoke consists of numerous compounds that are harmful, and it has been linked to a reduction in the thickness of layers in the brain, and to brain lesions, involving areas such as the frontal lobe, which plays a role in voluntary movement and control of thinking, and a decrease in activity in the area of the brain that processes vision," he said. Pixabay

While excessive smoking has been linked to various health issues, including heart disease and cancer, a new study has warned that smoking over 20 cigarettes a day can cause blindness.

The study from the Rutgers University noted that chronic tobacco smoking can have harmful effects on “spatial and colour vision”.

The findings, published in the journal Psychiatry Research, noted significant changes in the smokers’ red-green and blue-yellow colour vision. This suggests that consuming substances with neurotoxic chemicals, such as those in cigarettes, may cause overall colour vision loss.

Heavy smokers also have reduced ability to discriminate contrasts and colours compared with non-smokers.

“Our results indicate excessive use of cigarettes, or chronic exposure to their compounds, affects visual discrimination, supporting the existence of overall deficits in visual processing with tobacco addiction,” said Steven Silverstein from the Rutgers’s Behavioral Health Care.

smoking
Heavy smokers also have reduced ability to discriminate contrasts and colours compared with non-smokers. Pixabay

“Cigarette smoke consists of numerous compounds that are harmful, and it has been linked to a reduction in the thickness of layers in the brain, and to brain lesions, involving areas such as the frontal lobe, which plays a role in voluntary movement and control of thinking, and a decrease in activity in the area of the brain that processes vision,” he said.

For the study, the team looked at 71 healthy people who smoked less than 15 cigarettes in their entire lives and 63 people, who smoked over 20 cigarettes a day. The participants were in the 25-45 year age group.

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The study’s findings showed noticeable changes in the red-green and blue-yellow colour vision of the heavy smokers.

Previous studies had also pointed to long-term smoking as doubling the risk for age-related macular degeneration and as a factor causing lens yellowing and inflammation. (IANS)