■ BOSTON. High altitude flights spark symptoms. Feeling a little achy, lightheaded or short of breath on a long plane flight? A new study suggests you might be suffering from a mild form of altitude sickness. Until now, such symptoms had been attributed to jet lag, dehydration, air contamination or being stuck in a cramped seat for hours.

■ CHICAGO. Daily morsel of dark chocolate cuts blood pressure. A nibble a day of dark chocolate helped lower blood pressure without packing on the pounds, German researchers said recently. Prior studies have shown foods rich in cocoa like dark chocolate offer heart benefits, but researchers have worried the added sugar, fat and calories would cancel out any good the chocolate might do.

■ BEIJING China inspectors find one-fifth of goods substandard. Nearly a fifth of goods Chinese quality inspectors checked in the first half of this year were below standard, the government revealed yesterday as it faced continued pressure over toxic and potentially dangerous exports. The General Administration of Quality Supervision, Inspection and Quarantine put the best light on its latest report, stressing that 80.9 percent of 7,200 products inspected passed scrutiny and that overall quality was improving.

■ KUALA LUMPUR. Sexual problems could lead to rhinos? extinction. Low sperm counts and other reproductive problems are preventing pregnancy among Malaysia?s endangered rhinos, a worrying trend that wildlife experts say could hasten the animals? extinction. Experts meeting on Borneo island this week to discuss ways to save the Borneo rhino said a major threat ? besides poaching ? was the animals? own inability to reproduce

■ STOCKHOLM. Soviet WWII sub wreck found in Baltic Sea. A Finnish-Swedish search team has found the wreck of a Soviet submarine sunk by the Finnish navy in the Baltic Sea during World War II. The Soviet SC305 was fired on and rammed by a Finnish submarine in November 1942, sending it to the bottom in Swedish territorial waters off the island of Aland.

■ CAIRO. Egypt to use DNA tests to identify pharaoh Tuthmosis. Egypt will run DNA tests on an unidentified mummy to determine whether it is the pharaoh Tuthmosis I, who ruled over a period of military expansion and extensive construction, state news agency MENA said on Tuesday. Egypt?s chief archaeologist Zahi Hawass said the findings would be compared with DNA from mummies of known members of Tuthmosis?s family, including Queen Hatshepsut, whose mummy was identified last week, and Kings Tuthmosis II and III, according to MENA.