Apple founder Steve Jobs has resigned as chief executive of the technology giant and will be replaced by its chief operating officer Tim Cook.
One of Col Muammar Gaddafi's sons, Saif al-Islam, has appeared in Tripoli and claimed the government had "broken the backbone" of the rebel offensive there.
For decades, the United States has been the number one global economic power. But during the past few years, it has faced a sluggish economy, millions of Americans out of work, a huge budget deficit and a polarized political environment. All of these factors have compelled some experts here and abroad to ask whether the United States is a powerful nation in decline.
All expectant parents hope that their babies will be healthy. Yet sometimes problems arise that require a newborn to be hospitalized. When this happens, the baby may be admitted to the neonatal intensive care unit (NICU) for treatment.
Manchester United is to sell off a significant stake in the club in Singapore to partly pay off its gross debts of £515m, the BBC has learnt.
At least two otherwise healthy men appear to have acquired a rare bacterial skin infection that is hard to treat with antibiotics after receiving tattoos at a parlor in Seattle in the state of Washington in the US, according to a report in the Emerging Infectious Diseases journal that was e-published ahead of print on 10 August by the Centers for Disease Control and Prevention (CDC). Although no evidence was found to link the use of tap water to the infections, the report authors recommend that tattoo operators avoid using tap water and use sterilized water throughout their procedures.
US researchers say they have identified how a high-fat diet can trigger type 2 diabetes, in experiments on mice and human tissue.
New data on the US economy, including a huge drop in a regional manufacturing survey, has heightened market fears of a new recession.
Parents of underweight babies must be given more information on reducing the risk of cot death, says a charity.
What do drugs, alcohol, unprotected sex, tattoos, and body piercings have in common? They're all things your parents might lecture you about avoiding, but there's another connection: They can all lead to a liver condition called hepatitis.