second hand cigarette smoke pregnancy Early life secondhand exposure assessed by hair nicotine biomarker may reduce children's neurodevelopment at 2 years of age Secondhand Smoke Exposure During Pregnancy
Description
Nicotine alone is toxic and can be lethal

70% of tobacco and vape users desire to quit, but the challenge lies in not knowing how
Taste: Balanced tobacco taste with a slightly smoky but elegant note

The rest I've pulled from a reddit thread
Research shows that total and free testosterone levels in smokers can be slightly higher compared to non-smokers, but its worth noting that these levels dont stay high indefinitely

Importantly, e-cigarettes are not a safe alternative
