Both men and women are livinglonger these days in industrialized countries.Ingeneral, they can expect to live six or seven years more than men. One reasonfor this is biological.
One important biological factor thathelps women live longer is the difference in hormones between men and women.Between the ages of about 12 and 50,women produce hormones that are involved in fertility(生育能力). These hormones also have a positive effect on the heartand blood flow. In fact, women are less likely to have high blood pressure orto die from heart attacks.
Theyhelp the body defend itself against some kinds of infections. This means thatwomen generally ger sick less often and less seriously than men. The commoncold is a good example: women, on average, get fewer colds than men. Scientists are still not exactly sure howinfluence aging, but they believe that they do. Some think that a woman's bodycells have a tendency(向) to age more slowly than a man's. Others think that a man's body cells have a tendency to age more quickly.
A．However,women, on average, live longer.
B .The biological factorplays an important part.
C. Women are also helped bytheir female genes.
D. The female hormones alsoprotect the body in another way.
E. Recent research seems tosupport both of these possibilities.
F. Therefore, women are morehealthy than men and can live a better life.
G. Hormones are chemicalswhich are produced by the body to control carious body functions.
