Here is a complete list of disadvantages and bad effects of smoking  on health. And hope that you will know more about the dark side of smoking after reading this. Effects of smoking On hair Greying and thinning of hair. Hair growth is reduced and it will look dull and lifeless. Effects of smoking On brain May lead to brain stroke by blocking the supply of blood to brain cells. Effects of smoking On eyes It leads to cataracts, glaucoma, and age- related macular degeneration and also sometimes permanent blindness. Effects of smoking On nose It may affect the sense of smelling and some times it may lead to complete loss of smelling [...]