How healthy is chocolate? Recent evidence says the sweet candy may be better for you than you think.

According to a study, chocolate has more health-promoting plant flavonoids than broccoli or Brussels sprouts, while dark chocolate has even more antioxidants than green tea, red wine and blueberries.

Curiosity experts Kathy Wollard and Debra Solomon, authors of "How Come? Planet Earth" say, chocolate, after all, comes from a plant, the cacao plant, so it's not surprising that it's full of flavonoids, chemicals found in fruits and veggies that have positive effects on everything from blood vessels, heart and brain to exercise - endurance and longevity. Plant flavonoids also help keep arteries cholesterol-free and reduce inflammation. In addition to protecting our arteries, chocolate simply makes us feel good. It contains a number of chemicals thought to raise mood, and even inhaling the smell of chocolate seems to reduce theta-wave activity in the brain, inducing a sense of relaxation.