Oxidative stress occurs when the balance between free radicals in the body and our ability to fight against them is uneven, with free radicals prevailing. Free radicals can cause disease and there is an association with an increased risk of formation of free radicals as we age. That's why after a certain age, building up our defenses (through having lots of antioxidants in plants) can help reduce this imbalance and stack the cards in our defense system instead.
Another great idea it to get into a group fitness strength training class. This is a less intimidating way to get started and in most gyms you will find people of all ages and abilities attending; just ask the instructor if it is the right level for you. Strength training at home is another possibility. By joining GHU TV you are spending a minimal amount and getting the personal training of experts like Chris Freytag and others who will do the workout with you providing the expertise needed to do it correctly! Just pick up a pair of dumbbells, bring them home and get started. Keep in mind that if you are afraid to pick up the weights you can even use your own bodyweight to build strength through moves like push-ups, lunges and squats. Strength training for as little as 20 minutes two to three times a week can build enough muscle to increase your resting metabolic rate (RMR) over time.