How To Fix Health Problems With Exercise?

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Ever wonder why you feel so great after you break a sweat? Turns out, exercise isn't just an effective flab-fighter -- it's a remedy for pretty much any troubling health issue you are facing: anxiety, insomnia, back pain -- even hot flashes. "When it comes to preventing health problems, exercise is one of the best medicines we have," says David Katz, M.D., founding director of the Yale University Prevention Research Center. But some workouts are better than others for healing what ails you. Try these active solutions.

Anxiety

A proven way to ease anxiety naturally is with a bout of cardio, says Michael Otto, Ph.D., co-author of Exercise for Mood And Anxiety. Getting your heart pumping increases the release of mood-stabilizing neurotransmitters, like serotonin, norepinephrine and GABA, which is why you can feel like you're sweating off stress during Spinning class. The good vibes continue: A study in the journal Medicine & Science in Sports & Exercise showed that doing 30 minutes of moderate-intensity exercise (jogging, not sprinting) makes you more resilient against stressors hours later, like preparing for that big meeting with your boss. And over the long term, "people who work out consistently report less overall stress, anxiety and depression," Otto says.

Your Fitness Rx: Do a quick blast of cardio on the morning of a hectic day, or to unwind at the end of one. If possible, take it outside -- numerous studies show that fresh air provides a big mood boost.

Daytime Sleepiness

Instead of leaning on caffeine (which can prevent you from falling asleep later, causing drowsiness again the next day), get moving. Folks who meet the recommended physical activity guidelines of 150 minutes a week are 65 percent less likely to feel tuckered out during the day, a 2011 study found. "Exercisers fall asleep faster, suffer fewer middle-of-the-night wake-ups and have a reduced risk of sleep disorders," says study co-author Brad Cardinal, Ph.D., co-director of the sport and exercise psychology program at Oregon State University.

Translation? You'll snooze more soundly and feel more energized on the go. "We aren't sure why activity primes your body for sleep so well, but it's likely a combination of factors, including lowering your core body temperature, increasing the sleep-promoting hormone melatonin and supporting a biological need to restore energy levels and repair cells and tissues when you sleep," Cardinal says.

Your Fitness Rx: Aim for 150 minutes per week of moderate activity. Try to work in some yoga; a 2012 study found that practicing yoga along with deep-breathing techniques relieved insomnia within four months. Wrap up your workout at least three hours before you hit the sack: Exercise can be too stimulating near bedtime.

Back Pain

The supporting muscles around your spine become less resilient with age; sitting hunched over a computer all day weakens them further. But the new thinking is that rest isn't usually the answer. "Research has shown that a better fix, in most patients, is strength training," advises Wayne Westcott, Ph.D., an exercise scientist at Quincy College in Massachusetts. "It can lessen pain by 30 to 80 percent in 10 to 12 weeks." Developing your lower-back, abdominal and oblique muscles takes pressure off your spine and improves range of motion, both preventing and treating pain.

Your Fitness Rx: Two or three days a week of strength-training exercises, focusing on major muscle groups (try the chest press, leg press and seated row) and lower-back and ab work (the lower-back-and-ab machine). Aim for 2 to 4 sets of 8 to 16 reps each.

Low Sex Drive

Look no further than your local gym: In a Journal Of Sexual Medicine study, women who hit the treadmill for 20 minutes were more physiologically aroused while viewing an erotic video than the group that didn't work out. "Exercise increases circulation to every area of your body," explains ob-gyn Alyssa Dweck, M.D., co-author of V Is for Vagina, and that makes us more game for bedroom action. Mentally, regular workouts may help us get over body hang-ups, she adds. And the feel-good endorphins released during exercise can bust through fatigue or stress that drags down sex drive. (Having increased stamina won't hurt, either.)

Your Fitness Rx: Add workouts that get your heart pumping and put you in touch with your body, like Latin dance or Zumba (try Cheryl Burke's salsa workout on page 102). Dr. Dweck also recommends yoga positions that increase blood flow to the pelvic area.

Food Cravings

If you've been using willpower to resist those 3 p.m. chocolate urges -- and failing miserably -- try a little activity instead. Here's why: "In the throes of a craving, your brain is saying 'feed me dopamine!' -- that neurotransmitter that taps into the reward center of your brain. You can satisfy the call with carbs -- or with exercise," says John Ratey, M.D., author of Spark: The Revolutionary New Science of Exercise And The Brain. Both fixes raise your dopamine levels significantly, but only one will have a favorable effect on your tush.

Your Fitness Rx: When you get the vending machine crazies, take 15 minutes and go for a brisk walk, which was shown in recent research to be all it takes to short-circuit food cravings.

Hot Flashes

During menopause and the years leading up to it, 80 percent of women will suffer from symptoms such as hot flashes and night sweats. Exercise helps you maintain a healthy BMI -- crucial if you're feeling the heat, since overweight women report more severe symptoms -- and dials down stress, which can trigger flashes, says Dr. Dweck. It doesn't take much: One 30-minute walk or run on the treadmill quelled hot flashes by up to 74 percent over a 24-hour period, according to a study published in the journal Menopause.

Your Fitness Rx: Cardio is crucial if you're dealing with the big M. Aim for 30 minutes, five days a week.

Weak Immune System

Aerobic workouts are a natural cold-fighter, coaxing immune cells out of body tissues and into the bloodstream, where they attack invading viruses and bacteria, explains David Nieman, Ph.D., a professor at Appalachian State University, whose research shows that five days of cardio a week reduced sick days by 43 percent.

Your Fitness Rx: Workouts that raise your heart rate can improve immunity. Good options: Jog, cycle or take a dance class. Or, try a circuit workout (with little or no rest in between exercises) for 30 minutes on most days of the week. (Avoid intense exercise beyond 90 minutes, since that can increase your risk of getting sick.) That little commitment is all you need to score a big health payoff.

"How To Fix Health Problems With Exercise" originally appeared on Health.com