Since there is no
possible way for the cells in our bodies to distinguish between
natural radiation and radiation from the nuclear industry, the
latter cannot cause new types of genetic diseases or deformities
(e.g., bionic man), or threaten the "human race". Other
causes of genetic disease include delayed parenthood (children of
older parents have higher incidence) and men wearing pants (this
warms the gonads, increasing the frequency of spontaneous
mutations).