According to the National Institute of Mental Health (NIMH), nearly 20 million Americans each year have a mental illness. These include major depressive disorder (MDD) and dysthymia, both considered forms of clinical depression.

While some people experience depression throughout their lives, others develop symptoms later in life, and this is especially true for women who tend to experience depression earlier than men.

Because women are nearly twice as likely as men to suffer from depression, they often don't seek treatment due to the belief their symptoms are typical, or they should get over it.

Sexual deviation is any sexual activity outside the scope of what is currently conventional. It is known medically as paraphilia. Views of what is conventional can change pretty quickly. For this reason, any list of deviant practices will, to some extent, be a reflection of the prevailing view of what is expected.

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