This description makes it sound mediumish
Differences in prevalence of tobacco use also were also seen across population groups, with higher prevalence among those with a [high school equivalency degree], American Indian/Alaska Natives, uninsured adults and adults with Medicaid, and [lesbian, gay, or bisexual] adults, the investigators said
The tar and nicotine in cigarettes and other tobacco products are the main culprits
Moreover, smoking has been found to have a positive and independent effect on testosterone levels, with smokers having significantly higher total testosterone (TT) and free testosterone (FT) levels compared to nonsmokers, even after adjusting for factors such as age, BMI, triglycerides, and alcohol consumption
A blog post from the Independent Petroleum Association of America called the document release a desperate move and the latest in a coordinated attempt to hurt the fossil fuel industry