Hi, Dianabol, also known as Methandienone, is an anabolic steroid that is often used to increase muscle mass and strength. It is a synthetic derivative of testosterone and can have a variety of effects on the body, including on the nervous system. There is some evidence to suggest that Dianabol use can affect the nervous system in several ways. Some patients who have taken this medicine have experienced increased aggression, mood swings, and anxiety. A few others could possibly experience depression or insomnia. In some cases, long-term use of anabolic steroids like Dianabol can lead to more serious neurological problems, including seizures, coma, and even death. Dianabol can also have an impact on sexual function. In men, it can cause a decrease in sperm count, testicular atrophy, and gynecomastia (the development of breast tissue). It can also lead to erectile dysfunction and a decrease in libido. In women, Dianabol use can cause menstrual irregularities, clitoral enlargement, and even infertility. It is important to note that the use of Dianabol and other anabolic steroids is illegal in many countries, including the United States, and is associated with a range of health risks. If you have concerns about the impact of Dianabol on your health, it is important to speak with a healthcare provider. They can guide how to safely stop using the drug and monitor for any potential health complications. If you require a personalized response, kindly use the Ask A Doctor service and post a follow-up. Take care. Hope I have answered your question. Regards, Dr. Priyanka, General & Family Physician