Cocaines long term impact

Long-term cocaine use can reinforce addiction and impair dopamine signaling and the brain’s ability to adapt through learning and plasticity.

• Dopamine spike and crash: Cocaine can cause a rapid, large dopamine increase, followed by a drop below baseline. That low state can drive craving and pursuit of more cocaine. 1
• Changes with repeated use: Over time, cocaine can produce progressively smaller dopamine peaks and deeper troughs, with recovery to baseline taking longer. This shifts the system toward craving and drug pursuit; drug-taking can also make slower, everyday rewards less motivating by comparison. 2
• Plasticity and learning: Research discussed on the show indicates that cocaine-related dopamine spikes and subsequent low dopamine can limit later plasticity and learning in the neocortex and nucleus accumbens. The reported effect lasted for a period after use, potentially making it harder for the brain to learn and adapt. 3