A study published in May in the journal Heart (link opens in new window) found that one egg a day can only keep the doctor away. Researchers studied nearly half a million Chinese adults over the age of nine and ...

The heart is the main organ in the circulatory system. As a hollow and muscular pump, its main function is to propel blood throughout the body. Usually beats from 60 to 100 times per minute, but can be faster if ...