I. What is Crime. Robertson (1989:123) maintains that a crime is an act that contravenes a law.. Generally speaking, deviant behavior becomes a crime when it is too disruptive and uncontrollable via informal sanctions. Like all forms of deviance, crime is a relative matter. Most people, however, in any given society tend to view the difference between criminal and noncriminal behavior as being absolute.
Melasma can fade on its own. This often happens when a trigger is causing the melasma, such as a pregnancy or birth control pills. When the woman delivers the baby or stops taking the birth control pills, melasma can fade. Some people, however, have melasma for years â or even a lifetime.
Darker skinned individuals are more at risk than fair skinned individuals. Estrogen and progesterone sensitivity are also associated with the condition. This means birth control pills, pregnancy, and hormone therapy can all trigger melasma. Stress and thyroid disease have also been postulated to be causes of melasma. Sun exposure can also cause melasma because the ultraviolet rays affect the cells that control pigment (melanocytes).