The part of the e-cigarette that heats up may also explode or cause serious burns
This may cause men to crave the rewards of nicotine to cope with stressful workdays
A wide range of factors influence how long and how well we live, including: opportunities for education, income and wealth generation, safe, secure and affordable housing, and the right to shape policies and practices that impact our everyday lives (see model of health, right)
Epidemiology of tobacco use and male infertility Numerous risk factors have been proposed for male infertility including erectile dysfunction, varicocele, congenital dysplasia, endocrine disorders, immune factors, sexually transmitted infections, and exposure to chemicals and radiation (Krausz, 2011)
Further evidence that the concentrations of some flavor chemicals used in EC refill fluids may exceed safe levels can be found by comparing our data to the concentrations in other consumer products