Smoking Cessation: The 7 Sneaky Ways Smoking Steals a Woman's Beauty
The physical effects of this bad habit aren't limited to your internal organs -- see how smoking also destroys women's hair, skin and nails (and why you should quit)
The oxygen deprivation that we covered earlier with relation to skin and hair damage, is also the culprit here. Your nails are alive and they need air just like the rest of you.
Additionally, the simple act of holding the cigarette between your fingers is an external cause that can result in the yellowing of both the nails and the skin on your fingers. This "yellow finger syndrome" is caused by the staining effects of the tar and nicotine, which also penetrate the skin to impart a perma-odor of smoke.