He used a feeding tube for three months, re-learning how to swallow, because of the prior radiation
Though you wont have yellowing of the teeth like with tobacco products, there are many great reasons, including improved respiratory responses
For males, under this worst-case smoker scenario, the age pattern of the gap is non-monotonic (increasing until 5054, dipping around 6069, then rising again at 80+), with a mean difference of 6.4 years
Both claims were of course never conclusively confirmed nor disproven through independent clinical studies
Although fewer women smoke than men, the percentage of female smokers is declining at a slower rate than the percentage of male smokers, and the gender gap is shrinking