Although I don't agree with the author's conclusion, it is true that drugs can have long-term side effects on sensitive parts of the brain. Tinnitus in particu

Although I don't agree with the author's conclusion, it is true that drugs can have long-term side effects on sensitive parts of the brain. Tinnitus in particular is fairly common and is listed as a side-effect on many prescription meds. I've experienced it after taking DMT and it also lasted about a year. I've also had small visual changes that are harder to pinpoint and certain smells being amplified. The risk is small for the average person and it usually goes away, so it's really a personal choice if it's worth it.