Australian surgeons said they have used hearts which had stopped beating in successful transplants, in a world first they said could change the way organs are donated.
A Mexican man who was once the world's heaviest human when he weighed, weighing 597 kilos (1,316 pounds) at one point, has died at the age of 48, medical officials said.
The head of Samsung Group, South Korea's largest business empire, underwent an emergency operation Sunday after developing symptoms of heart failure, hospital officials said.
Syrian Foreign Minister Walid Muallem, who led the regime's negotiating team at failed peace talks this year, underwent a successful heart operation in neighbouring Lebanon on Friday, Syrian television reported.
US federal regulators said Friday they were investigating products containing testosterone after recent studies suggested a higher risk of strokes and heart attacks in men being treated with the hormone.
Nursultan Nazarbayev stressed the importance of Bolashak Presidential Scholarship and the effect it had on the development of cardiac surgery in Kazakhstan.
Mowing the lawn or washing the car are among simple activities that can reduce the risk of heart attack or stroke by almost 30 percent in people over 60.
If the heat makes you cranky, take heart: you're not alone, according to a study out Thursday in the US journal Science that links rising tempers to hot temperatures.