It seems there might be a misunderstanding or a typo in your question. If you meant to ask about "mental disease" or "mental disorders," I can certainly provide information on that topic. Mental disorders, also known as psychiatric disorders or mental illnesses, are conditions that affect a person's thinking, feeling, behavior, or mood. These disorders can vary widely in their severity, duration, and impact on daily functioning.
Common examples of mental disorders include:
Depression
Anxiety disorders
Schizophrenia
Bipolar disorder
Obsessive-Compulsive Disorder (OCD)
Post-Traumatic Stress Disorder (PTSD)
Attention-Deficit/Hyperactivity Disorder (ADHD)