- "O" no: Since cigarette smoking deprives the body of oxygen, nails suffer as a result. Slow growth, brittle, dry, cracked, hooked, and peeling nails are all common symptoms.
- Fungus among us: All that cracking and peeling leaves fingers less protected and therefore more susceptible to infections like nail fungus.
- Can't take the heat: Heat that rises from cigarettes causes the cuticles and skin surrounding the nails to become dry and wrinkled.
- Cancer: The risk of cancer should be enough for you to quit smoking. But if you need one more reason, we'll appeal to vanity. Clubbed nails, a condition in which the nails and fingers become deformed, can sometimes be found in people diagnosed with bronchogenic carcinoma, for instance.
- Masking other diseases: As mentioned previously, smoking discolors the nails, but certain diseases can also cause similar yellowing of the nails. Therefore, a person who smokes might mistakenly assume her yellow nails are only caused from the staining of tar and nicotine, when in actuality, there's more to it than that.
The good news is all of this is preventable. You know what to do.
Source: Flickr User timparkinson