smokeless tobacco has been regulated in the sport of High school athletes using more than non-athletes | CDC Online Newsroom Smokeless tobacco products now prohibited

Salina Journal

Common compounding factors include: Chronic stress raises cortisol, which can push hair follicles into a resting (shedding) phase Poor diet low iron, protein, or vitamin D can weaken hair growth Alcohol consumption dehydrates the body and scalp, and can affect nutrient absorption Lack of sleep disrupts the hormone balance needed for healthy hair cycles Sun and pollution exposure adds to oxidative stress on the scalp Underlying health conditions thyroid issues, PCOS, and autoimmune conditions can accelerate thinning independently of smoking If you smoke and struggle with several of these at once, addressing smoking first often produces the most noticeable improvement in scalp health

PMID 23356812

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