(Corsini Encyclopedia of Psychology, 2010)
The mechanisms behind smoking hair loss are complex, but they all point to one conclusion smoking is bad news for your hair
Rate of Smoking by Country [shield-db-table] Countries With the Most Smokers Among the countries with the highest number of smokers, ten nations stand out for their significant smoking rates and rankings: Nauru, Myanmar, Serbia, Papua New Guinea, East Timor, Bulgaria, Lebanon, Indonesia, Latvia, and Croatia
Detection time varies by test type and individual factors: Nicotine and cotinine can be detected for different lengths of time depending on whether testing is done via blood, urine, saliva, hair, or breath, as well as factors like metabolism, age, genetics, body fat, liver health, and frequency of use