A woman farmers harvests pearl millet in Andhra Pradesh, India. Millets were once a steady part of Indians' diets until the Green Revolution, which encouraged farmers to grow wheat and rice. Now, the grains are slowly making a comeback. Courtesy of L.Vidyasagar hide caption

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Courtesy of L.Vidyasagar

Which eating plan will work with your lifestyle and help you lose weight? U.S.News & World Report has plenty of advice with its latest diet rankings. Maximilian Stock Ltd./Getty Images hide caption

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Maximilian Stock Ltd./Getty Images

A molecular biologist is studying how excess sugar might alter brain chemistry, leading to overeating and eventually, obesity. Veronica Grech/Ikon Images/Getty Images hide caption

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Veronica Grech/Ikon Images/Getty Images

This Scientist Is Trying To Unravel What Sugar Does To The Brain

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Oprah Winfrey arrives at the 87th Academy Awards nominees luncheon at the Beverly Hilton Hotel on Monday, Feb. 2, 2015, in Beverly Hills, Calif. Jordan Strauss/Invision/AP hide caption

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Jordan Strauss/Invision/AP

Physical exercise, diet and supportive counseling are the first steps of any weight-loss program. But sometimes that's not enough to take large amounts of weight off, and keep it off, doctors say. 13/Ocean/Corbis hide caption

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13/Ocean/Corbis

Surgery Helps Some Obese Teens In Battle To Get Fit

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The group of women in a new study with the lowest rate of breast cancer consumed about four tablespoons of olive oil each day. Heather Rousseau/NPR hide caption

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Heather Rousseau/NPR

Mediterranean Diet With Extra Olive Oil May Lower Breast Cancer Risk

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Parents of children who are extremely finicky may find it useful to seek help, psychologists say, because some kids won't outgrow the behavior on their own. But don't make the table a battlefield. Chad Springer/Corbis hide caption

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Chad Springer/Corbis

Could Your Child's Picky Eating Be A Sign Of Depression?

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A meta-analysis found that people on vegetarian diets lost around 4.4 pounds more than the control group (who had no change in diet), while those who went vegan dropped 5.5 pounds more. Marcus Butt/Ikon Images/Corbis hide caption

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Marcus Butt/Ikon Images/Corbis

The Mediterranean-like DASH and the plant-centric Ornish eating plan topped this year's rankings of diets by a panel assembled by U.S. News & World Report. Gillian Blease/Getty Images/Ikon Images hide caption

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Gillian Blease/Getty Images/Ikon Images

After a hard day of bruising battle, ancient gladiators reached for a post-workout drink, according to an ancient account. New research backs that up. Stefano Bianchetti/Corbis hide caption

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Stefano Bianchetti/Corbis