Exercise can help restore dopamine receptors that were damaged by substance abuse.

Using addictive substances can severely damage your brain's reward system. It wipes out dopamine receptors, leaving people feeling depressed, unmotivated, and unable to enjoy normal life. But research shows that exercise can actually reverse this damage. By jumping on a treadmill or lifting weights, you help your brain rebuild those lost receptors. It is like a natural repair crew, slowly restoring your ability to feel ordinary happiness again.