is weed more harmful than tobacco Smoking Marijuana Vs. Tobacco: What Science Says About Lighting Up Vaping Weed May Be Worse

Yan H, Huang W, Yan C, Gong X, Jiang S, Zhao Y, Wang J, Shi Y

Restak described it metaphorically as "the basis for the withdrawal response in addiction when the receptors, deprived of their usual supply of addicting substance, 'cry out' like deserted lovers for the missing chemical." Without the chemical for a long enough period of time, the receptors are "down regulated." The circuits of the brain adapt to the presence of nicotine, whose structure mimics the structure of a naturally occurring brain chemical called acetylcholine , a substance that releases another substance called dopamine

[xx] WHO Framework Convention on Tobacco Control, 2021a

I was allowed a key to the kingdom

The heart has to pump harder to get enough oxygen to the rest of the body

Flavoured tobacco, including menthols, has been banned in Canada since 2017