LONDON — Global cancer cases are projected to rise 75 percent by
2030, in part because many other diseases are being stamped out
and more developing countries are adopting Western lifestyles
linked to cancer, international cancer experts reported. While
population growth and aging explain much of the increase, at
least one-fifth of the new cancer cases will likely be due to
preventable factors, the researchers predict. Cancers that are
caused by infections, such as cervical cancer and some liver and
stomach cancers, are falling. But experts say that decline will
be outpaced by a surge in cancers linked to bad diet and
exercise habits, smoking and drinking too much alcohol, such as
cancers of the lung, colon and breast. Researchers estimate that
by 2030, the number of people affected by cancer in some of the
poorest countries will increase by more than 90 percent.
Previous health initiatives to save people from dying of
infectious diseases such as malaria or AIDS also mean they are
living long enough to develo