Too little sleep or too much sleep can throw your stress and regulatory hormones out of whack, and may lead to weight gain. A single night of sleep deprivation can increase levels of ghrelin (a hormone that promotes hunger), making you more likely to overeat the next day. Reduced sleep may also lead to fatigue during the day (duh) and less physical activity, which may be another reason why people who regularly don't get enough sleep tend to gain weight.
Cross-training is important for a few reasons: First off, it makes you a stronger runner and reduces your risk of injury. “Running is only hard on your joints if you don’t have the muscle to support them,” Rubin says. Secondly, lifting will help you lose weight. “The more lean muscle mass you have, the more calories you’ll burn at rest,” she says. That's right, more muscle means more burned calories when you're just sitting around. To get started, try these 10 essential strength exercises for runners.

Green Tea is an excellent fat loss supplement and as an added bonus, it contains potent ployphenol antioxidants. The power of green tea comes from the polyphenols contained within. The most potent metabolism booster of these is called epigallocatechin gallate or EGCG for short. This polyphenol has the ability to increase thermogensis much like caffeine but without the stimulant effect or taxing of the nervous system.
This may explain why the fat-burning effects of eating more protein were confirmed in a study published in the American Journal of Physiology. One group was fed a high-protein diet (just over 1 gram per pound of body weight per day) while the second group consumed an amount closer to the lower recommendation of the RDA (recommended dietary allowance). The group eating the higher-protein diet burned the most fat.