This is due to various factors, such as stronger nicotine dependence and a higher likelihood of experiencing severe withdrawal symptoms
Hot Showers and Overheating Excessive heat exposure to the testes, such as from hot baths or tight clothing, can impair sperm production since healthy sperm require slightly lower than body temperature
Nicotine addiction Muscat says the reason why the early morning smokers have a greater risk of developing cancer is: "not because they are smoking more frequently or for a greater number of years, but rather it represents a smoking behaviour that seems to reflect the intensity of smoking." This leads to increased carcinogen exposure
Common covariates in the adjusted model included age, sex, ethnicity, body mass index, education, income level, comorbidity status, and substance abuse