From The Literature: Dermatology
March 2008
in “
International Society of Hair Restoration Surgery
”
TLDR Smoking 20+ cigarettes daily increases the risk of severe hair loss in men.
A survey conducted on 740 Taiwanese male subjects aged 40–91 indicated that smoking 20 or more cigarettes per day was associated with a higher incidence of moderate to severe androgenetic alopecia, classified as Norwood IV–VII.