Methamphetamine is a highly addictive substance, and its abuse can lead to numerous undesirable side effects such as anxiety, insomnia, paranoia, hallucinations, tooth decay and permanent brain damage. Long-term meth abusers can look years, if not decades older in appearance as their skin loses elasticity and blood vessels constrict and experience necrosis. Learn more at [ Ссылка ]
![](https://i.ytimg.com/vi/aObCIW_r4xg/maxresdefault.jpg)