Posts Tagged ‘sex’

Almost 7,000 people died from HIV/AIDS in China during the first nine months of 2008, making HIV the leading cause of death from infection. Tuberculosis and rabies have fallen to second and third places. Just three years ago, less than 8,000 Chinese in total had died from HIV/AIDS. However, with the tremendous movement of populations from the countryside to cities, and the gradual shift towards a less conservative society, the spread of HIV has gained momentum. Initially, HIV primarily affected injection drug workers. Now, the main cause of transmission is thought to be unsafe sex.

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Are men and women truly different at heart? Perhaps, when it comes to heart transplants. A new Johns Hopkins University study finds that cardiac transplant patients have better odds of survival and a lower risk of rejection if they receive organs from donors of the same sex. Doctors think that heart size is an important factor. Men’s hearts are bigger and have more pumping capacity than women’s. Researchers believe that hormonal and immunologic differences between the sexes may also play a role. However, at this time it is not feasible for every person in need of a heart transplant to be paired with a perfect match – approximately 2,700 Americans are waiting for a heart, but only 2,200 heart transplants are performed annually.

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