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Many Americans are not only financially unprepared to retire – some fear retirement more than death, a recent survey shows.

About 61% of working Americans are , and 64% fear retiring more than getting divorced, according to a national survey for in June.

How much to retire? Less than you think.

Those concerns reflect grim pictures painted by other studies over the years as the population continues to get older and live longer.

About 20% of Americans ages 50 and older , according to an AARP survey in January. It also found 61% are worried they won’t have enough money for retirement.

How scary is retirement?

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All baby boomers – those born between 1946 and 1964 – will be . By 2040, roughly 78.3 million Americans will fall within that age group, the National Council on Aging says.

It's not just money that fuels fears of retirement.

Other concerns include a , says Psychology Today, which notes, "for many people, their job is a big part of their identity."

Other fears include , which may affect the ability of retirees to live independently because of fears of slipping and falling and other late-life worries, according to the University of Arizona.

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How much money will Americans need to retire?

Americans are "15 times more likely to save for retirement when they have access to a workplace plan," AARP says. However, about half of Americans to a retirement plan at work.

The problem is more common among low-wage workers, says the Economic Innovation Group. Those earning less than $37,000 a year are to retirement plans.

How much have Americans saved?

The average American spends about , according to the 91Ӱ�� Department of Labor, yet only about half of Americans have calculated how much they will need to retire.

What drives retirement fears?

In addition to a lack of retirement plans, many Americans are "overcoming ," says financial institution CIBC.

"Student debt, high rent, car loans and other expenses" make saving difficult, CIBC says, adding that "living a middle-class lifestyle is 30% more expensive now than it was 20 years ago."

Source: 91Ӱ�� Network reporting and research; LiveCareer; AARP; National Council on Aging; CIBC