Exercise has been shown to lengthen lifespan by as much as five years. A small new study suggests that moderate-intensity exercise may slow down the aging of cells. As humans get older and their cells divide over and over again, their telomeres—the protective caps on the end of chromosomes—get shorter. To see how exercise affects telomeres, researchers took a muscle biopsy and blood samples from 10 healthy people before and after a 45-minute ride on a stationary bicycle. They found that exercise increased levels of a molecule that protects telomeres, ultimately slowing how quickly they shorten over time. Exercise, then, appears to slow aging at the cellular level.

Poorly toned triceps -- the muscles on the backs of the arms -- can cause arms to be loose and jiggly. Tone up this area with standing overhead triceps extensions. Hold a light weight in your left hand with your arm straight above your head, elbow by your ear. Keep your upper arm still as you bend the elbow and forearm to bring the weight behind your head. Return to start position and repeat 10 to 12 times or until fatigue sets in. Repeat on the right arm and complete three sets in total per arm.

Exercise helps people to lose and maintain weight. An exercise session burns calories and elevates metabolic rate both during exercise and then for hours after exercise is completed. It helps to preserve and build lean muscle mass. It works to suppress appetite. All of these benefits work together to make exercise vital for maintaining weight loss.


HOW TO DO IT: Start in a high plank with your hands underneath your shoulders. Jump your feet outside your hands and drop into a deep squat position, pushing your knees out and keeping your feels flat on the floor while prying your chest open with your hands. Return to the starting position and repeat. For an added challenge, try moving both forward and backward.

The workout below, created by Jess Sims, NASM-certified personal trainer and instructor at Classpass Live, Shadowbox, and Fhitting Room in New York City, challenges your entire body and doesn't require a single piece of equipment. "It’s a full-body, dynamic workout that includes strength, power, mobility, and cardio," Sims says. "It’s also great because it’s customizable—if you have less than 20 minutes, you can do the circuit one time, or if you have more than 20 minutes you can do it three times."
Exercise improves physical health. Physically active individuals have a much better health outlook than their sedentary peers. Even modest regular physical activity has a positive influence on people's health and vitality. A minimum of 20 to 30 minutes of moderate activity a day most days of the week will benefit health and assist with weight loss. A formal workout is not necessary to have these benefits; a brisk walk will suffice (although a more vigorous workout will suffice that much more).

Research has shown that to manage weight, you should exercise energetically for at least 30 minutes a day. You can also do an hour of intensive exercise every second day if this fits into your schedule more easily. Be consistent and be regular. Do those one-hour exercise sessions three to four times every week, not just one week a month, and you will achieve the result you desire - to lose weight and keep it off, says Dr Ingrid van Heerden, registered dietician.
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