<span>The answer to this question is this question is
hard core swiss heroin addicts. The Swiss heroin addicts are given heroin by
the government to give treatment to them which is called the Heroin-assisted
treatment. This treatment is successful and it focused on cutting the risk of
overuse of heroin. </span>
The Yin-Yang stood for inseparable and contradictory opposites like male and female (hince the light and dark)