I don't mean to be alarmist but doing planks for a long time made my boner weaker. I resolved this by doing 12 push ups and 12 squats. I think its a...
informally, since 1973; formally, since 1977. CLF since 1993
Biography:
Born: 1963. Previous training includes but not limited to: judo, kenpo, TKD, kickboxing, Lung Ying (dragon shape) and Tanglangquan (northern praying mantis)