IBT Staff Reporter

U.S. stocks slid to session lows on Tuesday after the credit ratings of both Greece and Portugal were cut, escalating worries about their sovereign debt.

NEW YORK (Reuters Life!) - Motivation and keeping a journal of what you eat are key components for shedding excess weight, according to new research.

(Reuters) - U.S. healthcare reform spawned a wave of lowered profit forecasts this week as drugmakers quantified the costs, but the pain should be manageable until the new law starts helping results in 2014.

Police broke into a blogger's home in search of photographs of a prototype Apple iPhone and other material, launching a felony investigation, gadget site Gizmodo and prosecutors said on Monday.

Prices of single-family homes fell in February on a monthly basis but posted the first annual increase in more than three years, Standard & Poor's/Case Shiller home price indexes showed on Tuesday.

Federal Reserve Chairman Ben Bernanke said on Tuesday the country's budget deficit is on an unsustainable path and requires near-term action from policymakers to avoid dangerous outcomes.

UAL Corp , parent of United Airlines, on Tuesday said its quarterly net loss shrank, topping expectations, helped by a sharp revenue increase and accounting gains related to its fuel hedges.

Nokia Oyj unveiled details of its first phone with new Symbian 3 software on Tuesday, designed to challenge the iPhone and Blackberry at the high-end of the market.

Goldman Sachs Group Inc's Fabrice Tourre, accused of creating a product that led to a U.S. Securities and Exchange Commission civil fraud lawsuit, on Tuesday denied the regulator's charges and allegations that he or the bank misled investors.

Diversified manufacturer 3M Co posted a higher-than-expected quarterly profit on Tuesday and raised its sales and profit forecasts for the full year, citing strong demand in developing markets as well as an improving economic backdrop.

U.S. stocks were little changed on Tuesday as strong earnings offset German demands for new austerity measures from Greece that prompted more worries over shaky Greek debt.

Home prices fell in the month of February, but rose compared to a year ago for the first time in more than three years, in the latest sign that the housing market is slowly recovering.

(Reuters) - People who are depressed eat more chocolate than people who are not, U.S. researchers said on Monday, in a study that puts numbers behind the link between mood and chocolate.

Transport companies posted better-than-expected first-quarter results on improved volumes in a sign that the domestic economic recovery is starting to catch up with the rest of the world.

United Parcel Service , the world's largest package delivery service, on Tuesday reported higher first-quarter earnings, reflecting an improving global economy and higher international volume.

Greek bonds and bank shares sank to new lows on Tuesday as a budget expert from Germany's ruling party pressured private banks to accept a discount on the Greek debt they own, spreading the pain of an international bailout.

The Supreme Court said on Monday it would decide whether a California law banning the sale and rental of violent video games to minors violated constitutional free-speech rights, the first time it will rule on a video game case.

NEW YORK (Reuters Health) - Addicted to smoking and unable to quit? Your genes may be partly to blame, according to a trio of studies published Sunday in Nature Genetics that link several gene variants to a range of smoking habits, as well as increased risk for lung cancer.

The cost of insuring Greece's debt against default hit a record high and its borrowing costs soared on Tuesday after Germany's junior coalition party said Berlin was not certain to put its weight behind a financial rescue.

Performance sports car maker Porsche AG's sterling reputation for quality took a severe dent on Tuesday, when it recalled every Panamera it built only months after the model line was launched to much fanfare.

DuPont said strong emerging market demand and sales of specialty chemicals helped its first-quarter profit more than double, beating Wall Street expectations and sending its shares up nearly 2 percent in premarket trading.

U.S. stock index futures pointed to a lower open on Tuesday after Germany demanded new austerity measures from Greece, prompting worries over Greek debt, although strong earnings reports limited losses in the Dow.

Deutsche Bank delivered record investment bank earnings and European peers Lloyds and Swedbank swung to surprise profits on Tuesday as an economic recovery picked up to aid the embattled industry.

U.S. stock index futures fell on Tuesday as worries mounted over Greek debt after Germany demanded new austerity measures and investors awaited another round of earnings and economic data.

Greece might have to quit the euro zone for a time if the country failed to tighten its belt sufficiently to qualify for emergency aid, a budget expert with Germany's junior coalition party said on Tuesday.

Sharp Corp beat market expectations with a forecast for annual operating profit to more than double to its highest in three years, after it swung to a quarterly profit on strong sales of display and solar panels.

Queensland University of Technology (QUT) scientists will use technologically advanced automated monitoring equipment to track greenhouse gas emissions and the impact of urbanisation as part of a new national research network.

The most sweeping overhaul of U.S. banking rules since the Great Depression stumbled in the Senate on Monday as Republicans united to prevent action on the bill.

Deutsche Bank's investment bank posted forecast-beating record quarterly earnings, adding credibility to the lender's ambitious targets even as Wall Street faces a regulatory and legal hurricane.