In these scary economic times, older workers are putting off their retirement and hanging on to a paycheck. Some retirees struggling to make ends meet are scanning help-wanted ads for the first time in years. Two weeks ago, Jeff Rollison, a 60-year-old employee at the General Motors Corp.'s plant in Lordstown, Ohio, told the automaker he was retiring. Now, he's changed his mind. Rollison is worried that something could happen to his retiree health benefits before he would become eligible for Medicare at age 65. Medicare is the government's health-insurance program for the elderly. Rollison is the sole breadwinner for him and his wife. But he also is concerned about his grown children, including a son with three kids who is being laid off at a neighboring GM plant. "If something would happen with General Motors and our health care would go away, which has happened to a lot of companies here, I would have to wait five more years to be Medicare-age," said Rollison, a member of United Auto Workers Local 1112. "There's a lot of uncharted waters out there, and we have questions that can't be answered by anybody right now on how well the company will do in the short term." A survey by the seniors' advocacy group AARP of 1,100 people conducted in December showed that 16 percent of people 45 and older had postponed retirement because of the economic downturn. But the percentage of people planning to delay retirement shot up to 57% among respondents who were working or looking for a job and had lost money in the market during the past year. Robert Dobkin's last day on the job as spokesman for Pepco, a utility company in the District of Columbia and Maryland, was supposed to be April 1. Now, it's delayed indefinitely. "I felt that I was in a good position to retire until the market kept going down and down and the economy ground to a halt," said Dobkin, 67. "I just figured there's no point in retiring in this time of uncertainty until I have a better feel for where the economy is going." The average retirement age, which was between 62 and 63 for men and women last year, is on the rise, according to the AARP Public Policy Institute. For instance, the percentage of 63-year-old men who were in the work force rose from 44% in 2000 to 51% in 2007, according to the institute. The recession is not the only reason people are working longer. Life-expectancy rates are going up. So, too, is the age at which workers are entitled to receive full Social Security benefits. Mark Lassiter, a spokesman at the Social Security Administration, said that while some older people stay on the job during economic downturns, others turn to Social Security because their jobs are eliminated. The agency reported a nearly 9% increase in retirement claims between the 2008 budget year and 2009, which ended September 30. An increase was expected because baby boomers are starting to retire, but the jump was higher than anticipated because of the recession, he said. Some companies are looking to cut costs and keep younger, less-expensive workers. Yet some businesses are happy to keep experienced workers. "Experienced workers produce more per hour with less supervision than youngins'," said William Dunkelberg, chief economist for the National Federation of Independent Business and an economics professor at Temple University. "The elderly may, in fact, be cheaper than teeny boppers" because they require less training, seek part-time work and will accept lower wages. Currently, about 17% of the workforce is 65 or older - a share on the rise since the late 1990s. At 74, Beverly London of Big Run, Pennsylvania, thought her days of working were over. She and her husband sold to their son the family retail carpet store they operate in their rural community and settled into retirement. They felt secure with thousands of dollars of stock in a bank. But the bank failed and the value of their stock shrank from six to four figures. "We were thinking about winter and I was worried about how I was going to keep my house warm. I had to start putting resumes in," London said, recounting how a younger worker got one retail job she applied for. Nationwide, the February unemployment rate for workers 65 and older was 6.8%, the highest reported for the group since the 1970s. London eventually found a job through Experience Works, a national nonprofit organization that receives money from the Senior Community Service Employment Program, a Labor Department program. The $787 billion economic stimulus package that President Barack Obama signed includes $120 million in additional money for the program, which provides subsidized, part-time community-service jobs to low-income workers 55 and older. London works part time at Pennsylvania CareerLink, a state unemployment office in nearby Punxsutawney, Pennsylvania. She is happy and healthy, but knows her work days are numbered. "I'm trying not to dwell on the future because right now. I'm just glad I can write a check for the $400 gas bill," she said. "We'll never be able to build up a nest egg again. We didn't have a fancy life, but we took a golf vacation one week out of the year. There's no golf vacations anymore." Darnell Holopirek, 62, of Great Bend, Kansas, and her husband are postponing retirement in hopes the economy will turn around. Part of their decision is personal. They don't have enough funds to retire. But she also is motivated as director of institutional advancement at Barton Community College Foundation to stay on the job and help the school as the recession hits its investments and donations. "It's a little bit scary to us when we see people who have retired now looking to having to go back to work," she said. "We sure don't want that to happen to us. We'd rather keep the good jobs that we have that we're happy with, rather than retiring and then in a year or so, finding out that we just can't stay retired." When Randall Gainforth, 55, of Tampa, Florida, retired from his county job in September 2007 after 33 years as a children and family mental-health counselor, he took his $130,000 in retirement savings and put it in stocks. He figured that with the help of a broker, he could make more than the 3% to 4% he was guaranteed by the Florida state retirement system. Today, that account is worth only about half, and the mental-health work he started doing in semiretirement is drying up. Gainforth is looking for a job in the medical industry. "I need to work until that money gets built back up," he said. He's hardly alone. The net worth of US households fell by 9% over the last three months in 2008. It was the biggest quarterly decline since record keeping began in 1951. "I think most people are scared to death, first of all, about the prospects for the market," said Kelly Campbell, a financial adviser and principal of Campbell Wealth Management in Fairfax, Virginia. "They feel they've been let down by the market, by their broker and/or by the their government. They're paralyzed right now because they don't know what to do."