Why Social Isolation Fuels Drug Addiction

Rats are far less likely to become addicted to drugs when they live in a stimulating, social environment. Researchers found that isolated rats chose morphine water, but those in a happy colony mostly avoided it.

During the 1970s, scientists discovered that the environment matters just as much as the substance itself. Rats kept in boring, lonely cages turned to drugs as an escape from their miserable surroundings. When those same rats were moved to an enriched play area with toys and friends, they almost entirely stopped self-administering drugs. This suggests that addiction may be more about a need for connection than just a chemical craving.