) -- The labor market is no longer a man's world.

Between 2000 and 2010, the number of women employed in the U.S. increased by roughly 2.1 million, while the number of men remained essentially stagnant, increasing by just 54,000 in 10 years, according to data provided by the Bureau of Labor Statistics. As a result, the share of all jobs held by men in the U.S. dropped to just 52.8% by the end of the decade.

During the past decade, women began to overtake men in a number of health care and education professions.

In part, labor experts pin this trend on a recession that disproportionately affected

male-centered industries

such as manufacturing and construction, but this tells only some of the story. Throughout the first decade of the new millennium, men moved toward being the minority in a number of professions they had long dominated.

This was particularly prevalent in professions requiring advanced degrees. Medical scientists, for example, who typically need a Ph.D. to work in labs or at pharmaceutical companies, experienced one of the biggest changes in gender makeup of any profession. In 2000, the majority of those who worked in the profession (54%) were men, but by last year just 46% of medical scientists were men.

Likewise, the percentage of male veterinarians declined from nearly 70% in 2000 to about 44% last year, making this the profession with the single greatest shift in the proportion of men to women, according to an analysis of the BLS data.

Much of the changing gender balance, experts argue, can be traced to the early 1970s, when more women began pursuing college degrees and full-time careers.

"Young women in elementary and middle school began to look around and realize that they were going to be in the labor force for a substantial part of their lifetimes and therefore needed to concentrate more on professions that were better investments," said Claudia Goldin, a professor of economics at Harvard University.

Indeed, studies show that women today are

more likely to graduate

from college and master's programs than men, and all this education has made them incredibly competitive in the job market.

"There has been a real shift in the education of the population," said Robert Drago, director of research for the Institute for Women's Policy Research. "Any profession where you see high education requirements like health care, law and accounting, you'll likely see a lot more women than there were 10 or 20 years ago."

But just because more women are pursuing higher education doesn't mean they are flocking to all high-level jobs equally. According to Drago and others, women are more likely to look for professions that let them act as caregivers in some way or at least provide them with flexible schedules to take care of their own families.

For this reason, they say, we not only see women flocking to become veterinarians, a position that involves caring for animals, but also to become tax preparers, which had the second biggest shift in gender makeup. Workers in this field often have more control over their schedules.

Two industries women have remained particularly disinterested in are construction and manufacturing.

"These are not exactly the most welcoming jobs to women," said Heather Boushey, senior economist at the Center for American Progress. "You still have cases of gender discrimination in these fields where some are unsure about whether women can do the work, which may affect the decision of a 17-year-old trying to figure out what to do with her life." So when these jobs started to disappear following the housing crunch, women were largely unaffected.

Aside from the crunch faced by these industries and the ongoing education gap, Boushey sees one other key factor at play in the decline of men in the labor force: stay-at-home dads. More men, recognizing the success of their spouses, have opted to take on the housework instead.

For the full list of professions where women are overtaking men, check out this slideshow.

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