We’re continuing to learn that shortchanging our sleep — even for just one night — can lead to less healthy food choices the next day. The latest study took a look at subjects’ MRI scans after a night of sound sleep and again after a night of sleep deprivation. The MRI scans showed that sleep deprivation activates an area of the brain that makes you view food as more desirable. In other words, it prompts cravings. This adds to other evidence showing that insufficient sleep increases hunger while also making us less likely to stay active. Taken all together, it means that a healthier sleep situation can encourage a healthier weight.
Say cheese! Adding some extra calcium and vitamin D to your diet could be the key to getting that flat stomach you’ve been dreaming about. Over just 12 months, researchers at the University of Tennessee, Knoxville found that obese female study subjects who upped their calcium intake shed 11 pounds of body fat without other major dietary modifications. To keep your calcium choices healthy, try mixing it up between dairy sources, calcium-rich leafy greens, fatty fish, nuts, and seeds.
“Exercise should not be used to purge calories,” Albers says. “Instead, to boost your mood to keep you motivated.” The thing is, exercise is great for you and can make you feel awesome. And feeling good about yourself seems to be actually useful in weight-loss efforts. Plus, some research has shown that changes in exercise behavior can lead to changes in eating behavior. “In part, it is neurochemical. Movement and exercise you enjoy boosts your serotonin and dopamine levels, which makes you feel good all the way around,” Albers says.
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.
"When we’re lacking in sleep, our body’s hormones get thrown off balance which can impact our hunger levels the next day. We all have two hormones that affect our appetite: ghrelin and leptin. When we don’t get enough sleep, our ghrelin levels (the hormone that makes us feel hungry) rise, and our leptin levels (the hormone that makes us feel full) drop. This means that when we’re awake, we tend to eat more but feel less satisfied. Try going to bed a little earlier than usual to avoid this imbalance and remember to remove any distractions that might prevent you from nodding off."