Heroin and Methamphetamine are both highly harmful, so neither is “better.” Heroin depresses breathing, causing high overdose risk and strong physical dependence. Meth overstimulates the brain, leading to severe addiction, paranoia, heart problems, and long-term brain damage. Heroin deaths often occur from respiratory failure, while meth causes lasting mental and physical decline. Both pose serious, life-threatening risks and require professional treatment and support.