Those buff lab rats might be smarter than we think. Various studies on mice and men have shown that cardiovascular exercise can create new brain cells (aka neurogenesis) and improve overall brain performance Aerobic exercise is the critical variable in an enriched environment that increases hippocampal neurogenesis and water maze learning in male C57BL/6J mice. Mustroph ML, Chen S, Desai SC, Cay EB, DeYoung EK, Rhodes JS. Neuroscience Program, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, USA. Neuroscience. 2012 September 6;219:62-71. Aerobic exercise improves hippocampal function and increases BDNF in the serum of young adult males. Griffin EW, Mullally S, Foley C, Warmington SA, O’Mara SM, Kelly AM. Department of Physiology, School of Medicine, University of Dublin, Trinity College, Dublin, Ireland. Physiology & Behavior. 2011 October 24;104(5):934-41.. Ready to apply for a Nobel Prize? Studies suggest that a tough workout increases levels of a brain-derived protein (known as BDNF) in the body, believed to help with decision making, higher thinking, and learning. Smarty (spandex) pants, indeed.


One of the easiest ways to tone those arms fast is by incorporating some bicep curls into your routine. Simply raising and lowering a weight in a 180-degree range of motion, starting with your arm extended along your side, and bringing it up toward your shoulder, can yield serious definition in a hurry. Fortunately, this exercise doesn’t require a fancy gym membership or even special equipment; while it’s not hard to find a set of dumbbells for under $10, you can also use household products, like gallon jugs of water or soup cans to get the same result.
5. Stimulate all 3 “muscle fiber types” in your arm. Generally speaking, your arms have 3 types of “muscle fibers” that respond to different amounts of weight. The easiest way to stimulate all 3 types is to use heavy, medium and light weights in your workouts. Miss this one, and your results will plateau very quickly. Tip: have some caffeine right before working out if you don’t want to feel the “burn”.
Bend your knees to lower down into a split squat. Your left knee should ideally form a 90-degree angle so that your thigh is parallel to the ground, and your right knee is hovering above the floor. (Quick position check: your left foot should be stepped out far enough that you can do this without letting your left knee go past your left toes—if you can't, hop your left foot out a bit farther away from the bench.)
Bend your knees to lower down into a split squat. Your left knee should ideally form a 90-degree angle so that your thigh is parallel to the ground, and your right knee is hovering above the floor. (Quick position check: your left foot should be stepped out far enough that you can do this without letting your left knee go past your left toes—if you can't, hop your left foot out a bit farther away from the bench.)
3. It strengthens the lungs. Working hard increases lung capacity, and their efficiency in moving air in and out of the body. As a result, more oxygen is drawn into the body and more carbon dioxide and other waste gases are expelled. Regular exercise helps prevent the decline in oxygen intake that occurs naturally with age or as a result of inactivity.
Fat is a freeloader. Body fat sits on your body and takes up space. Muscle, on the other hand, is a workhorse! Not only does it look better, but it actually works to burn calories and helps your metabolic rate. Losing fat is going to be much easier if you strength train and build muscle. Though we are going to concentrate on specific arm strength exercises in this article, try to get a full-body strength training session in twice per week. Not sure how to start? Use this free Beginner’s Guide to Strength Training to get you started!
You can choose to do them on your knees or on your toes, as well as a wide variety of push up variations to target specific muscle groups in the arm. Place your arms closer to your body or farther out to lose fat in a specific area. If you’re really serious about losing arm fat, drop down and do a set of push ups whenever you have time. In the office, on lunch or while you’re catching up on the news, a set here and there can help you get rid of arm fat and transform arm muscles.
I started the sleek arm challenge and super excited. I’ve injured my knee badly and it can’t take any weight at the moment sooo I figured it’s time to build some strength in my arms and shoulders. I noticed a lot of comments regarding arm fat, I have excess fat on my arms so I’ll post at the end of the month and tell you guys if there was any changes. I’m doing the exercises in the morning and evening (day 2 of the challenge and it really does take just a couple of minutes each time, 3 sets each time since I can’t do any other form of exercise at the moment). I definitely feel something in my shoulder blades and my shoulders/back feel more open as opposed to hunched (Yaaay :) )
In a widely-cited study published in February 2013 in the American Journal of Health Promotion, researchers at Oregon State University looked at more than 6,000 American adults and found that even small amounts of physical activity — like pacing while talking on the phone or doing some jumping jacks during commercials while watching TV, as long as these short bursts of exercise add up to 30 minutes a day — can be just as beneficial as longer workout sessions at the gym.
Exercise stretches muscles and joints, which in turn can increase flexibility and help prevent injuries. Exercise may also improve balance by increasing strength of the tissues around joints and throughout the body, thus helping to prevent falls. Weight-bearing exercise, such as brisk walking and weight training, strengthens bones and helps prevent osteoporosis. Exercise often can improve function and reduce pain in people with osteoarthritis, although regimens must be developed specifically for each person, and exercises that put undue strain on joints, such as jumping and running, may need to be avoided.

A combination of aerobic workouts (which, depending on your fitness level, can include walking, running, swimming, and other vigorous heart-pumping exercise) and strength training (weight lifting, resistance training) is considered best for heart health. These exercises improve the muscles’ ability to draw oxygen from the circulating blood. That reduces the need for the heart—a muscular organ itself—to work harder to pump more blood to the muscles, whatever your age.

“Body fat is structurally important,” explains Stefanie Mendez, R.D., co-founder of Matriarch, a women's fitness and nutrition service. “It cushions our organs and insulates our body for temperature control and also is our body’s source of energy reserves. Beyond that, fat is needed for the production of hormones and reproduction functions.” And that fat can show up in your thighs, your belly, and, yes, your upper arms. Where it goes is partly due to genetics; if your mom has arm fat, science says you have a 62 percent chance of inheriting that trait.
3. Practice “glycogen depletion” and repletion. Once you get the hang of eating as described in rule #1, you have to start manipulating your carbohydrate intake. The key is to keep it simple: on days you don’t workout reduce carbohydrate intake, on days you do workout increase it. Doing this is like applying a blow torch to your arm fat. Just make sure you don’t go into ketosis a la Atkins—research has shown that total carbohydrate elimination is NOT necessary for maximum toning. Not to mention, the acidic breath you get from ketosis stinks!
You're adding lean muscle. If you did a strength-training routine, your muscles are now starting to rebuild themselves and repair the microscopic tears that come with lifting weights, says Paul Gordon, PhD, director of the Laboratory for Physical Activity at the University of Michigan School of Medicine in Ann Arbor. Preliminary research shows that women respond to and recover from resistance training faster than men.

Studies have consistently shown that physical activity can help treat depression, and on the flipside, that low activity levels are a big risk factor for it. The antidepressant effect of exercise seems to be moderated in part through serotonin, the brain chemical that’s targeted with some antidepressants, and in part through bone-derived neurotrophic factor (BDNF). And this goes back to the generation of new cells mentioned earlier—exercise, though various mechanisms, seems to make the brain more plastic and more capable of growing new cells.


Sweating it out in the gym is a known de-stressor. Harvard Medical School has shown that aerobic exercise helps curb stress hormones like cortisol and adrenaline (as long as you're not overdoing it), while also flooding your system with feel-good endorphins. It also ups the calming, good-mood brain chemicals serotonin and dopamine. So while exercise itself is actually putting low-level physical stress on the body, it can be pretty mentally relaxing.
HOW TO DO IT: Stand with your feet together and hold both arms straight in front of you, palms together. Jump your feet apart, push your hips back, bend your knees and lower into a squat while pulling your arms apart and squeezing your shoulder blades together. Shift your weight over your right leg, and then your left leg, then right and left again before returning back to center and standing back up. Gradually increase your speed and range of motion throughout the set.
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