Kaiser doctor is accused of negligence but remains on the jobLate one April night, the first of Sarah Valenzuela's twins arrived with little trouble, but the second stayed put.

  Calling the latest version too costly to workers, a labor and consumer coalition shifts strategy from gentle persuasion to outright opposition.SACRAMENTO -- Abandoning their facade of cooperation, a coalition of California labor unions and consumer groups says it is gearing up a campaign to discredit Gov. Arnold Schwarzenegger's healthcare proposal as too expensive for many workers.

  The answer might be found in a few more birthdays.AS a culture that celebrates youth and beauty, we learn early on that adults are over the hill at 40. Birthdays aren't counted after 50. And by 60 the teasing has stopped and people are genuinely sympathetic.

  Competitive swimming at 50? Running at 70? When it comes to sports that require endurance, age can actually be an asset.SWIMMER Leianne Crittenden has recently racked up a national championship, world championship and world record, but she's not some promising college athlete.

  Change the way you train your biceps by performing alternating reverse curls while leaning against a large stability ball. It's a fun and creative way to add variety to basic moves. Always use slow, controlled motion, because you want to concentrate your effort on each arm individually.

  I have a problem with bad breath. I brush my teeth three times a day and use mouthwash. My dentist said, "It's not your mouth, which is very clean." I have read that a stomach infection with H. pylori bacteria could cause bad breath.

  Studies on three common treatments for osteoarthritis are inconclusive.AMERICANS with osteoarthritis of the knee may need to wait a little longer for proof that three common approaches actually work.

  Good health choices are still key to achieving longevityBILL Walker's mother lived to 101, his Uncle Rufus to 102. "I rather expected to live a long life," says the 89-year-old Long Beach resident. "I think it gave me a different view of aging, compared to some friends who had family members die in their 50s and 60s. They're looking for the grim reaper every day."

  Scientists seeking to understand longevity have growing populations to evaluate. Notable are communities in Japan and a California religious sect.The world is getting older. Today, people over 60 make up about 11% of the world's population and are projected to make up more than 20% by 2050. But although that segment of the population is growing fast, accumulating even faster are the number of people living past 100.

  Risks wax and wane across the life cycle. Here are the 10 leading causes of death by age group in the United States based on 2004 data, the most recent available:Ages 1-4