Can meth damage your health? I don't mean unnoticeable minor damage like smoking cigarettes for just a couple months would do. Does meth actually permanently damage your ability to think, memorize, emotions or is that just temporary. I believe the brain slowly weakens as you continue to use meth once or more a week. But if you take a break, just few weeks to months and you'd feel absolutely normal and your brain heals where it was damaged. My friend has used for a year and he wants to quit cause he's depressed but feels hopeless he won't feel much better.