我們都知道,吸煙可以引起肺癌,可見也有許多吸煙者並未發生肺癌,理由何在?一九六○年諾貝爾生理醫學獎得主貝奈特(Sir F. Macfarlane Burnet),因在免疫學方面的成就而獲此榮譽。根據他的理論,正常人體中每日產生大約十萬個癌細胞。可是一般人的免疫系統(防衛機制)都能有效地將這些癌細胞予以破壞。
Cancer cell walls have a tough
protein covering. By refraining from or eating less meat it frees more enzymes
to attack the protein walls of cancer cells and allows the body's killer cells
to destroy the cancer cells.