I think there's definite variance in brains that can't be denied, but I also believe mental illnesses are blown out of proportion to benefit drug companies. I remember during my stay in psyche hospitals, natural recovery was not an option. You had to take drugs or you were considered to be refusing treatment and they would forcfully administer them. They wouldn't have such a mandatory requirement on prescription drugs if there wasn't a financial benefit from them. Money outweighs your health.
Natural ways and talk therapy should be first. DBT can help modify brain patterns. Even with other disorders, drug companies try to deteure cures and prolong treatment. One drug study that works is sometimes submitted when the first x amount didn't.
Please read this book if you can find it. Written by a DR and also a Pharmacist, he debunks the BS system (and succeeds admirably) in showing why it's profitable (for DRs and the Pharm giants). And how the DRs bypass the CRUCIAL step in any diagnosis (especially pertinent for mental illness): the Differential Diagnosis. How it is so very devastating for patients(sometimes deadly), and the fact that there are other illnesses, or diseases, which DO disguise themselves as mental illnesses. For me it was an eye opener and a comfort.
" In medicine, a differential diagnosis is the distinguishing of a particular disease or condition from others that present similar clinical features.[1] Differential diagnostic procedures are used by physicians and other trained medical professionals to diagnose the specific disease in a patient, or, at least, to eliminate any imminently life-threatening conditions. Often each individual option of a possible disease is called a differential diagnosis (for example, bronchitis could be a differential diagnosis in the evaluation of a cough that ends up with a final diagnosis of common cold). More generally, a differential diagnostic procedure is a systematic diagnostic method used to identify the presence of a disease entity where multiple alternatives are possible. This method is essentially a process of elimination or at least a process of obtaining information that shrinks the "probabilities" of candidate conditions to negligible levels, by using evidence such as symptoms, patient history, and medical knowledge to adjust epistemic confidences in the mind of the diagnostician (or, for computerized or computer-assisted diagnosis, the software of the system). Differential diagnosis can be regarded as implementing aspects of the hypothetico-deductive method, in the sense that the potential presence of candidate diseases or conditions can be viewed as hypotheses that physicians further determine as being true or false. Common abbreviations of the term "differential diagnosis" include DDx, ddx, DD, D/Dx, or ΔΔ."