Many things can stain teeth, including antibiotics, quirks in individual metabolism, even a high fever. The yellower your tooth stains, the easier it will be to remove them. (Here’s 5 ways to keep your teeth from getting yellower.) Deep brown stains, such as those brought on by use of the antibiotic tetracycline during childhood when teeth are forming, can be very difficult to erase, says W. Brian Powley, DDS. The good news is that many common tooth stains—the coffee and cigarette variety—can often be washed away between professional cleanings....

MORE: 6 Things Your Mucus Says About Your Health Infection and inflammation of the sinuses can set in, a disorder called sinusitis. When you try to sleep, it’s as if you’ve sprung a slow leak. All night long, the drip, drip of nasal fluid trickles down your throat, sending you into coughing spasms. Pressure and pain around the face, teeth, or eyes, and often a headache and a thick green or yellow nasal discharge, are the hallmarks of acute sinusitis....

Nothing beats a cup of hot cocoa when the weather outside is frightful. But rather than sip the same-old sweet drink, boost the flavor—and even the health benefits—with these genius mix-ins. Add: Cayenne Not only will adding a pinch of this spice give your hot chocolate a kick, it will also help increase your internal body temperature, revving your metabolism and helping you burn a few extra calories, says Jamila René Lepore, MS, RDN, a nutritionist in Tampa, FL....

(Customize your own walking plan with Walk Your Way to Better Health and lose up to 5x more belly fat!) Walking Workout #1Quarter Mile-High Hill Repeats First, find your personal “power walk” pace. A power walk is the fastest pace that you can safely walk without transitioning to a jog. The difference between a walk and a jog is that with a walk, one foot is grounded at all times....

[sidebar]Early breakfast For 2 weeks, 10 women ate breakfast around 7:30 am in a University of Nottingham, UK, study. For another 2 weeks, they skipped breakfast and had a snack at 10:30 as their first meal of the day. During the weeks they ate an early breakfast, the women averaged 91 fewer calories a day, which could translate into a 1-pound weight loss in 5 weeks. Alcohol—in moderation Among 37,000 people studied by the National Institutes of Health, those who drank no more than one drink per day, 3 to 7 days per week, had the lowest body mass index....

“Yoga’s not just about stretching yourself out like a sweater,” says Emilie Smith, creator of Yoga for Athletes, which is offered at Equinox and Reebok Sports Club. “Yoga can improve running form, increase range of motion, and help prevent injuries. In the end, you’ll perform more efficiently,” she explains. Smith knows this first hand. She came to yoga as a runner, and developed her method to help athletic types just like her do yoga in a way that would complement and boost their training....

The average American is responsible for about 15,000 pounds of carbon dioxide emissions each year. This per capita number is greater than that of any other industrialized country. In fact, the United States—a country with 5% of the world’s people—produces nearly 25% of the world’s total greenhouse gas emissions. Here’s what you personally can do to help solve the climate crisis: Save Energy At Home Saving energy is not only a good thing to do for the climate crisis: It can also translate to real cost savings....

People will go green if it’s cheap and easy.Thirty-seven percent of Copenhageners commute to work and school by bike. Concrete dividers separate bicycle tracks from motorists so it’s safe, new cycling superhighways make suburb-to-city biking faster than crawling in traffic, and 40,000 public bike parking spots remove the need to shell out for the paid parking that you’ll find in much of the city. Rooftops are the new frontier. Plant-covered roofs help keep rainwater from flooding streets and homes, while bare ones are increasingly being used for urban farming and beekeeping....

Try these simple moves, making sure to relax the pelvic floor on each inhale and contract it on each exhale. “It should feel like you’re doing Kegel exercises that are linked to your breath,” says yoga teacher and physical therapist Bill Gallagher. Malasana floor, allowing it to contract more forcefully. Stand with feet about mat-width apart, toes off mat and heels on it. Bend knees and lower into a squat....

(Lose weight, tone up, and flatten your belly now with Prevention’s Flat Belly Barre!) So if you’re sick of crunches—or not getting the results you want—read on for 41 surprising ways to get a belly worth baring. 10 Habits That Will Shrink Your Middle Calm down. Too much stress can contribute to a potbelly. Stress increases levels of cortisol, a hormone that seems to direct fat to our middle, says Jacob Seidell, PhD, of the National Institute of Public Health in Bilthoven, Netherlands....

(Ditch processed foods for good and try the naturally sweet, salty, and satisfying meals in Prevention’s Eat Clean, Lose Weight & Love Every Bite!) (Surprise! You can also spiralize these 8 foods.) The five affordable picks below all scored 4.5 stars or more out of 5. Add one to your cart, and get ready to up your veggie bowl game big-time. Spiralizer 5-Blade Vegetable Slicer Customer rating: 4.6/5 (8,353 reviews) This simple-to-use hand crank spiralizer comes with a variety of stainless steel blades that you can swap out depending on the vegetable you’re slicing....

Hold each pose for up to 20 minutes. The extended length and movement in each pose will build and sustain energetic highs. Keep eyes closed when you practice these poses. Get psyched up for your practice by chanting Ong Namo Guru Dev Namo (pronounced ong nah mo goo roo dayv nah mo)—“I bow to the creative wisdom in myself"—three times. Spinal Flex/Camel Ride Sit with legs crossed, holding on to calves or shins....

The Fastest Way to Sculpt Workout Complaint: “It seemed clean when I visited, but now I’m grossed out.” Why it’s a problem Wearing shower shoes in the locker room isn’t going to protect your entire body from germs lingering on equipment if your gym doesn’t have an adequate scrubdown protocol. Unclean equipment—especially those you spend a lot of time on, like yoga mats—can become a breeding ground for skin infections ranging from athletes’ foot to herpes and MRSA, according to a 2010 position statement from the National Athletic Trainers’ Association....