3. Substance-related disorders
Anhedonia has been found to be fairly common in people who are dependent upon a wide variety of drugs, including alcohol, opioids, and nicotine. Whilst anhedonia becomes less severe over time, it is a significant predictor of someone relapsing into addiction and substance abuse.
There are few positive things to say about any kind of substance abuse or addiction, other than that attitudes towards people that are affected seem to be changing.
There used to be a hard-line approach from a society that sympathy wasn’t due to the people who had apparently made the choices themselves and condemned themselves to a life of crime and addiction, but nowadays there is more of an understanding that the plight in which these people find themselves is often not of their own making, and so perhaps empathy rather than sympathy is due.
Anhedonia is just another one in a long line of things that substance abuse and addiction can be a risk factor for.