i have smoked for over 30+ years i have plenty of energy i still do all the things i enjoy ..as far as lower testosterone im in my 40's and still have no problems getting a stiffy when needed and ocasionally when not needed..my kids moms smoked while pregnent[ not to excess but in small amounts as suggested by there midwives for morning sickness] all 3 of my young uns are very healthy well adjusted and inteligent semi well behaved children...i would believe nothing the feds or a school health book told me about drug abuse or recreational drug use..as far as dental hygene i have no idea where they came up with that one ...my teeth are a mess but i am more than sure it is from years of neglect due to using hard drugs when i was younger