The words cancer and shark evoke a common reaction in many people. Both induce a sense of fear. Lung cancer is one of the most difficult forms of the illness to treat, but, however dire the situation, it would seem as though it is treatable.

The two ladies in the photo, Leni White and Teresa Renier, are in fact lung cancer survivors! What makes them special is that even though most doctors would strongly caution against SCUBA diving after beating lung cancer - these two ladies still dive, with no apparent ill effects.

The two ladies, having beaten cancer, took on the other fearsome challenge in support of Lung Cancer Awareness Month, when they dropped themselves into a tank of sharks at Cape Town's Two Oceans Aquarium. Although they were understandably a little nervous, all went well and they left the tank heroes in their own right. Read more about their story here, in BizCommunity's medical news section.

Disclaimer: Kerry-Anne and I are not in the medical field and don't suggest that you should do anything without consulting your physician first. If you've survived lung cancer and would like to dive, please consult your physician and, as Leni and Teresa do, understand the risks.