After smoking for a lengthy amount of time, your fingernails will become too grotesque to even look at. The nails
will become discolored when they are exposed to certain chemicals. In this case, it's smoke from a cigarette and
even contact with the chemicals themselves when you hold the cigarette in your hand. All different chemicals can
cause an array of colors such as: Brown, yellow, gray, or even black.
Internal disorders can also deform your nails. Clubbing of the nail can occur when you have lung or heart disease.
Clubbing of the nail happens like this: Your fingers or toes thicken, and your nail wraps around it. Gross, huh?
