Research has found that people burn fewer calories when they sleep during the day and log their waking hours after the sun’s gone down. To come to this finding, researchers at the University of Colorado at Boulder studied 14 healthy adults for six days. For two days, study participants slept at night and stayed awake during the day, then they reversed their routines to mimic the schedules of night owls. When participants slept during the day, researchers found that they burned 52 to 59 fewer calories than they did while catching their Zzzs in the evening—likely because the schedule messed with their circadian rhythm, the body’s internal clock that plays a major role in metabolism function. If you have no choice but to sleep during the day, aim to cut 50-60 calories from your daily diet.

female belly fat


It isn’t so much the metabolism slowing in my 50’s as it is the bad habits associated with youth. A box of Mac and Cheese was not a bad choice when competitive and highly active, I needed the carbs. But the mindset that a full box is a single sized serving remains despite the slow down in activity and metabolism. That’s where the real challenge lies. Too many years of eating rabbit food only after it was processed into a rabbit (or steer preferrably) with potato or corn as the only acceptable vegetable.

The great news: You don't have to spend hours in the weight room. "Research shows that you'll have the same muscle gains with 2 days of strength training as you'd have with 3," says Dr. Westcott. In a recent study, participants who performed a strength-training program twice a week for 10 weeks had the same increase in muscle mass—an average of 3.1 pounds—as those who added an extra weekly session.


In our 20s, we might be keeping a keen eye on the thermostat for financial reasons. When we’re in our 40s, we’re usually in a better financial situation. But being less frugal might actually contribute to your paunch. A striking new study published in the journal Diabetes suggests that simply turning down the heat in winter may help us attack belly fat while we sleep. Colder temperatures subtly enhance the effectiveness of our stores of brown fat—fat that keeps you warm by helping you burn through the fat stored in your belly.

getting fat over the years


Think about it: Say you're twice as active as an influencer you follow. Eat exactly what she eats, and you'll feel way more tired and way more hungry than she is, since your body likely requires more fuel to operate, Dr. Seltzer says. A more appropriate diet that's based on your specific energy needs may involve way more food—like two ice-cream scoops instead of one!—and give you way more energy so you can live your best life, hanger-free.


“Most 40-year-olds can remember the fat-free craze of the ’90s, when Snackwells was king,” says Shapiro. “Well, those days are over.” She advises that you leave the fat-free fake foods behind and enjoy healthy fats that add flavor to your meals and help you fill up with less. “Coconut oil, avocado, nuts, seeds, salmon are rich in vitamins and minerals that will keep you young and fill you up on smaller portions, and therefore fewer calories.” She says.

building muscle over 40

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