That’s bad news, but emerging evidence shows that there are plenty of compelling reasons to start moving at any age and even if you’re ill or pregnant. Indeed, scientists are learning that exercise is, actually, medicine. “There is no pill that comes close to what exercise can do,” says Claude Bouchard, director of the human genomics laboratory at Pennington Biomedical Research Center in Louisiana. “And if there was one, it would be extremely expensive.”
The brain releases dopamine, the “reward chemical” in response to any form of pleasure, be that exercise, sex, drugs, alcohol, or food. Unfortunately, some people become addicted to dopamine and dependent on the substances that produce it, like drugs or alcohol (and more rarely, food and sex). On the bright side, exercise can help in addiction recovery Aerobic exercise for alcohol recovery: rationale, program description, and preliminary findings. Brown RA, Abrantes AM, Read JP, Marcus BH, Jakicic J, Strong DR, Oakley JR, Ramsey SE, Kahler CW, Stuart GG, Dubreuil ME, Gordon AA. Behavior Modification. 2009 March;33(2):20-249.. Short exercise sessions can also effectively distract drug or alcohol addicts, making them de-prioritize cravings (at least in the short term) The acute effects of exercise on cigarette cravings, withdrawal symptoms, affect and smoking behaviour: a systematic review. Taylor AH, Ussher MH, Faulkner G. Sport and Health Sciences, University of Exeter, Exeter, UK. Addiction. 2007 April;102(4):534-43. Acute effect of a brief bout of exercise on alcohol urges. Ussher M, Sampuran AK, Doshi R, West R, Drummond DC. Department of Community Health Services (Psychology), St. George’s Hospital Medical School, University of London, UK. Addiction. 2004 December;99(12):1542-7.. Working out when on the wagon has other benefits, too. Alcohol abuse disrupts many body processes, including circadian rhythms. As a result, alcoholics find they can’t fall asleep (or stay asleep) without drinking. Exercise can help reboot the body clock, helping people hit the hay at the right time.
Even very vigorous exercise—like the interval workouts Gibala is studying—can, in fact, be appropriate for people with different chronic conditions, from Type 2 diabetes to heart failure. That’s new thinking, because for decades, people with certain diseases were advised not to exercise. Now scientists know that far more people can and should exercise. A recent analysis of more than 300 clinical trials discovered that for people recovering from a stroke, exercise was even more effective at helping them rehabilitate.
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.
If you are trying to lose flabby arms, it would help to include more protein in your diet. Protein rich food will help you build more muscle and help boost your metabolism, thus helping you burn more calories. Another reason to include more protein in your diet is that it will help you feel full for a longer time, making it easier to not cave into hunger pangs between meals. Remember, the aim is to just up the intake of protein, not limiting your entire diet to just protein. Include more of lean meats, beans, nuts, seeds, seafood and leafy vegetables to lose flabby arms.

Strength training at the gym or taking a class at a fitness studio is great, but sometimes, you just want to get in your workout at home—or on vacation, or on a work trip, or wherever you may be. While most of us don't have round-the-clock access to a full gym stocked with weights and machines, the truth is that you really can work your entire body without them. Of course, equipment can help and is great for progressing and diversifying a workout program. But if you want to just get moving and do some strength and cardio work wherever you are, that's completely doable with a bodyweight workout.
As people enter their forties and fifties, muscle mass starts to decline because of aging and, in some cases, decreased activity levels. Muscular atrophy can also occur because of health conditions, such as joint pain. As we age, it’s important to increase or maintain muscle mass through strength training, not only because it helps burn calories, but also because muscle mass is essential for strength and balance.

Not feeling up to heavy lifting? Try doing more reps at a lower weight instead and you’ll be kissing that arm fat goodbye in no time. Researchers at Canada’s McMaster University studied a group of 20-something men over a 12-week period, with half the study subjects lifting heavy weight and doing low reps, and another group lifting lighter weights for higher reps. The Journal of Applied Physiology study found that both groups increased their strength and muscle size by approximately the same amount, so if you’re relatively new to lifting or don’t feel up to hitting the heavy weights just yet, don’t worry; lighter lifts will still help you ditch the fat while gaining muscle tone. 
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