a fetus is unaffected by its mother's use of tobacco. Second-hand smoke harms baby in womb Myths & Facts About Smoking

Lewis R, Parker R, Danehower D, Andres K, Jack A, Whitley D, Bush L (2012) Impact of alleles at the Yellow Burley (Yb) loci and nitrogen fertilization rate on nitrogen utilization efficiency and tobacco-specific nitrosamine (TSNA) formation in air-cured tobacco

FDA can issue an MRTP order for a specified period of time (but not more than five years at one time 85 ) if, among other things, it determines that the tobacco product will significantly reduce harm and the risk of tobacco-related disease to individual tobacco users and benefit the health of the population as a whole by taking into account users and nonusers of tobacco products

And some damage may never heal conditions like COPD and pulmonary fibrosis are irreversible

Retrieved March 5, 2022

Adhere to the rule of thumb everything in moderation, and you can enjoy the benefits of homegrown tobacco