According to the new study published in the journal Drug and Alcohol Dependence, Marijuana use increases up to 13 percent at the end of each year compared to the beginning of the year.

"We figured out that cannabis use is higher among people surveyed later in the year. This increment is at the peak during late fall or early winter and drops at the beginning of the following year. We think this is because of "Dry January," in which people stop using alcohol or marijuana as a part of New year's resolutions. This time we are in the phase when people are least likely to consume weed."

Said by - Joseph Palamar

- Ph.D., Master of public health

- Associate professor of population health at NYU Grossman School of Medicine

- Affiliated researcher with the Center for Drug Use and HIV/HCV Research (CDUHR) at NYU School of Global Public Health

- Study’s lead author

Past researches show that alcohol and drug use vary by time of the year. Usually, weed consumption increases during the summer months.

To get in-depth trends about marijuana use, joseph palamar and his team analyzed and presented data from 282768 teenagers and adults. The people examined in the research responded to the National Survey on Drug Use and Health from 2015 to 2019.

The survey asked people about past month marijuana use and other substances. According to the data, researchers estimated their marijuana use in each calendar quarter, i.e., January to March, April to June, July to September, and October to December.

Every new marijuana use grew, which increases in summer and fall before dropping as the new year began.

The seasonal trends in marijuana occur independently of marijuana growth throughout the year. Additionally, these seasonal trends can be seen across all groups, irrespective of sex, race, and education level.

Note: Teens are the exception. Their marijuana use grows in summer and falls back in the winter or spring season.

According to survey statistics, recreational marijuana use is also driving profitable cannabis growth throughout the year.

Cannabis use has shown little increase among those living in states with & without legal marijuana and those without medical prescription.

"Seasonal marijuana use all increased in people who reported using other illicit substances like alcohol, nicotine and especially LSD."

The researchers found various factors affecting the dip in marijuana use in winters:-

Study coauthor Austin Le, a research associate at NYU Langone Health and orthodontic resident at NYU College of Dentistry, said -

"Ultimately, we hope that these findings can be utilized by researchers and clinicians alike. Researchers studying marijuana use should consider seasonal variation, as surveys administered at the end of the year may yield different results than at the beginning of the year. And for those who wish to reduce marijuana use, it appears the best time for such targeting maybe later in the year — when use is highest."

This whole research is supported by the National Institute on Drug Abuse, part of the National Institutes of Health (grants R01DA044207 and K23DA043651).

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