Tone that booty
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“In a 2005 study in Physiology & Behavior, a group of Princeton researchers led by psychology professor Bart Hoebel, Ph.D., found that eating sugar triggers the release of opioids, neuro­transmitters that activate the brain’s pleasure receptors. Addictive drugs, including morphine, target the same opioid receptors. “Sugar stimulates receptors to activate the same pathways that are stimulated directly by drugs such as heroin or morphine,” Hoebel says. When this phenomenon was studied in lab rats, Hoebel’s students found that after 21 days on a high-sugar liquid diet, one group, whose feeding was delayed by 12 hours, showed signs of withdrawal, including anxiety, teeth chattering, and depression. While no human trials have been conducted yet, researchers hypothesize that sugary drinks, especially those consumed on an empty stomach, are similarly addictive for some individuals. So if you regularly replace breakfast with a sweet coffee drink, you could be setting yourself up for a sugar addiction. By constantly eating sugar, you also force your pancreas to work overtime. As you eat more, it pumps out massive amounts of insulin; eventually, your body may become less sensitive to sugar and, essentially, build up a resistance to it. Just as a frequent drinker needs to knock back more beers in order to feel their effects, you can begin to need more sugar to feel satisfied. Pick fruit Satisfy your sweet tooth with apples, bananas, and berries, which temper natural sugar with fiber and loads of antioxidants, says Elisa Zied, M.S., R.D., a spokesperson for the American Dietetic Association and the author of Feed Your Family Right! Dried fruit and 100 percent fruit juices will also do in a pinch, but they don’t have nearly as much fiber and are more concentrated sources of calories, Zied says, so limit yourself to a quarter cup or less of dried fruit or one cup of 100 percent juice a day. “
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Seriously.. Does P90x really works?

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