Gender differences in mortality and life expectancy vary by country. But in most countries, men live shorter lives than women (see figure). In Russia, for instance, the difference between male and female life expectancy is 13 years (59 vs. 72).he difference in male and female life expectancy has narrowed in recent years, from at least 7.7 years from 1972-1979 to 5.2 years in 2004, according to the U.S. National Center for Health Statistics.
A pulmonologist (sometimes referred to as a pulmonary disease specialist) is a physician who specializes in the diagnosis and treatment of conditions and diseases associated with the lungs.
What Can I Expect if Sent to a Hematologist? A hematologist is a doctor who specializes in studying, diagnosing, and treating disorders of the blood, such as leukemia, HIV, and clotting disorders. This specialty is particularly important because the blood is the method that the body uses to deliver oxygen and nutrients to tissues.