Stress can wreak serious havoc on our bodies, but we actually need stress to a certain extent. For example, if we were running from a bear, we would need our stress response to kick in full force. We would start breathing faster, sending more oxygen to muscles to fuel movement, then our bodies would release stress hormones from our adrenal glands (cortisol) to heighten our focus by tapping into energy reserves for fuel so we could flee the danger. Cortisol isn’t always the bad guy, but when this response is high and chronic it tells your body to eat more than it “needs” because it’s thinking much more about survival, not stress over a work deadline or relationship woe. Cortisol is needed, but high levels of cortisol over time will contribute to those mentioned health impacts, especially abdominal weight gain! The problem is when we’re actually not in danger and our bodies are living in this state chronically. THIS is the magic piece of the puzzle – learning how we can turn off that heightened stress response when it’s not needed.
Sweet chili peppers may not be a winter food, but continue eating them in your burritos, stir-fries, and soups, and you may burn more fat during your outdoor cold-weather runs. These not-hot veggies contain chemicals called capsinoids, which are similar to the capsaicin found in hot peppers. Combine capsinoids with 63-degree or cooler temps, and you increase the amount and activity of brown fat cells—those that burn energy—and give your metabolism an extra boost, according to a study published in the Journal of Clinical Investigation.
Choline: Some studies link low choline levels to increased risk of neural tube defects. Recommended levels have been established for this nutrient, but it's easy to get enough in your diet. Eggs are an excellent source of choline, for example. “Eating a few eggs a week should give you all you need,” Frechman says. “Most people can eat the equivalent of an egg a day without worrying about cholesterol.” Other choline-rich food sources include milks, liver, and peanuts.
For a strong backside that will turn heads wherever you go, Marta Montenegro, a Miami-based exercise physiologist and strength and conditioning coach, recommends completing 100 kettlebell swings nonstop with a moderate weight at the end of a legs workout. [Tweet this tip!] If you can’t access a kettlebell, do deadlifts and hip-thrusters instead. “Women tend to overemphasize the quadriceps even when they think they are working the butt. With these two exercises, you'll have no problem engaging the glutes and posterior muscles of the legs,” Montenegro says.
Most experts recommend 1,300 mg of calcium a day for girls aged 9 through 19. Natural sources of calcium, such as low-fat dairy products, are the smartest choice, because they also contain vitamin D and protein, both required for calcium absorption. Milk, yogurt, and cheese contribute most of the calcium in our diets. Some vegetables are also good sources, including broccoli, kale, and Chinese cabbage. Many foods are supplemented with calcium, including some brands of orange juice and tofu. The daily intake for Vitamin D is 600 IU per day for most children and healthy adults.
There's not much doubt about this one: Women need more iron than men, because they lose iron with each menstrual period. After menopause, of course, the gap closes. The RDA of iron for premenopausal women is 18 mg a day, for men 8 mg. Men should avoid excess iron. In the presence of an abnormal gene, it can lead to harmful deposits in various organs (hemochromatosis). Since red meat is the richest dietary source of iron, it's just as well that men don't need to wolf down lots of saturated fat to get a lot of iron.
It takes a lot of discipline to turn down a cupcake or roll out of your warm bed for a cold morning run. To make staying on track easier, it's important to make a real connection with your motivation, says Tara Gidus, R.D., co-host of Emotional Mojo. So think less about fitting into your skinny jeans or spring break bikini and more about emotional ties to the people you love. “Your relationships will grow stronger when you are physically healthy and taking care of yourself,” she says.
Salads can be a great source of nutrients while being low in saturated fat and simple carbohydrates. The key word is "can." Too many times I see individuals pass up perfectly healthy sandwiches and entrees, opting instead for a salad drenched in dressing, bacon bits, and croutons. These items, loaded with fat and calories while scant on nutrients, will not only sabotage a diet but will often fail to make you full.
The trick to biking uphill is to look ahead and anticipate. “Try to plan for what's coming,” says Georgia Gould, a LUNA pro athlete and 2012 Olympic bronze medalist in women's mountain biking. “Start shifting down one gear at a time for a smooth, energy-saving transition. Ideally your cadence should stay the same as you transition from harder to easier gears.”
Vinyasa and power may not be the only forms of yoga that will get you closer to that long, lean, limber look. Research presented at the 73rd Scientific Sessions of the American Diabetes Association found that restorative yoga—which focuses more on relaxing and stress-reducing movements rather than a challenging flow or balancing poses—burns more subcutaneous fat (the kind directly under your skin) than stretching does. By the end of the yearlong study, yogis who practiced at least once a month lost an average of about three pounds, nearly double the amount lost by those who only stretched. So if you don’t feel up for a more athletic yoga class, ease your way into a practice with a gentle one.
To achieve these goals, cut down on saturated fat from animal products (meat and the skin of poultry, whole-fat dairy products, and certain vegetable foods — palm oil, palm kernel oil, cocoa butter, and coconut). And it's just as important to reduce your consumption of trans fatty acids, the partially hydrogenated vegetable oils found in stick margarine, fried foods, and many commercially baked goods and snack foods.
It's easy to get lost in a killer playlist or Friends rerun on the TV attached to the elliptical, but mindless exercise makes all your hard work forgettable—and you can forget about seeing results too. “There is a huge difference between going through the motions of an exercise and truly thinking, feeling, and engaging the key muscles,” says Kira Stokes, master instructor at the New York City location of indoor cycling studio Revolve. “Be conscious of and enjoy the sensation of your muscles contracting and the feelings of growing stronger and more powerful with each rep.”
Young adults. Teen girls and young women usually need more calories than when they were younger, to support their growing and developing bodies. After about age 25, a woman’s resting metabolism (the number of calories her body needs to sustain itself at rest) goes down. To maintain a healthy weight after age 25, women need to gradually reduce their calories and increase their physical activity.
The U.S. Department of Agriculture's (USDA) food pyramid system (www.mypyramid.gov) provides a good start by recommending that the bulk of your diet come from the grain group—this includes bread, cereal, rice and pasta— the vegetable group; and the fruit group. Select smaller amounts of foods from the milk group and the meat and beans group. Eat few—if any—foods that are high in fat and sugars and low in nutrients. The amount of food you should consume depends on your sex, age and level of activity.
As the science of nutrition continually evolves, researchers recognize that nutrients needed to maintain a healthy lifestyle must be tailored to the individual for maximum effectiveness. Recognizing that people are not all alike and that one size does not fit all when it comes to planning and achieving a healthful diet, the Institute of Medicine's dietary guidelines, titled "Dietary Reference Intakes for Macronutrients," stress the importance of balancing diet with exercise and recommends total calories based on an individual's height, weight and gender for each of four different levels of physical activity.