One of the biggest questions regarding addiction is 'why are some people susceptible to addiction?' We know that many people can try addictive substances or activities yet only a percentage find these overwhelmingly addictive. Here I hope to present my thoughts on this intriguing subject. Keywords: addiction and happiness, peace of mind addiction, overthinking and addiction, addiction susceptibility, mental well-being addiction, chronic dissatisfaction addiction, why do some people become addicted, relationship between happiness and addiction, how to overcome addiction through mindfulness, addiction peace of mind, gladness and addiction recovery, switching off addiction cycle