Smoking
The message that 'smoking is harmful to your health' is an old one, but not everyone pay attention to it. According to Johns Hopkins study, if you smoke, you're most likely to report feeling unrested after a night's sleep. This can cause wrinkles under your eyes. In addition, if you smoke, your risk for the scaly skin condition also goes up. Further, the nicotine in cigarettes can not only stain your teeth, but it's also notorious for staining fingers and nails as well.
