Hazards of steroids.

Where do people abuse doping?

People who take steroids often take it by mouth, inject it into a muscle, or apply it to the skin as a gel or a cream. These doses may be 10 to 100 times higher than those prescribed to treat medical conditions. common patterns of  steroid abuse include:

Cycling: Take multiple doses over some time, pause for certain periods, and then restart.

Stacking: Combining two or more different steroids and mixing oral and/or injectable steroids.

Pyramid: Gradually increase steroids dose or 
frequency of use, peak in quantity, then gradually decreases to zero.

Fixed: Alternating, interfering, or substitution with another steroid to avoid developing tolerance. There is no scientific evidence that any of these practices reduce the adverse medical consequences of these medications.

How do Anabolic steroids affect the brain?

Anabolic steroids work differently from other anesthetic drugs. They, do not have the same short-term effects on the brain. The most significant difference is that steroids do not directly activate the reward system to cause a "high"; Nor do they lead to rapid increases in the brain chemical dopamine, which reinforces most other types of substance abuse behavior. 
Misuse of Anabolic steroids can lead to negative mental effects, such as:

Paranoid (excessive unreasonable) jealousy.
Extreme irritability and aggression ("verbal anger")
Delusion: False beliefs or thoughts weak judgment obsession.