Best exercises that you can ever do!

If you're not an athlete or serious exerciser — and you just want to work out for your health or to fit in your clothes better — the gym scene can be intimidating and overwhelming. What are the best exercises for me? How will I find the time?

Just having to walk by treadmills, stationary bikes, and weight machines can be enough to make your head straight back home to the couch.

Yet some of the best physical activities for your body don't require the gym or ask you to get fit enough to run a marathon. These "workouts" can do wonders for your health. They'll help keep your weight under control, improve your balance and range of motion, strengthen your bones, protect your joints, prevent bladder control problems, and even ward off memory loss.

No matter your age or fitness level, these activities are some of the best exercises you can do and will help you get in shape and lower your risk for disease:

1. Swimming

You might call swimming the perfect workout. The buoyancy of the water supports your body and takes the strain off painful joints so you can move them more fluidly. "Swimming is good for individuals with arthritis because it's less weight-bearing," explains Dr. I-Min Lee, professor of medicine at Harvard Medical School.

Research has found that swimming can also improve your mental state and put you in a better mood. Water aerobics is another option. These classes help you burn calories and tone up.

2. Tai chi

This Chinese martial art that combines movement and relaxation is suitable for both body and mind. In fact, it's been called "meditation in motion." Tai chi is made up of a series of graceful movements, one transitioning smoothly into the next. Because the classes are offered at various levels, tai chi is accessible — and valuable — for people of all ages and fitness levels. "It's particularly good for older people because balance is an important component of fitness, and balance is something we lose as we get older," Dr. Lee says.

Take a class to help you get started and learn the proper form. You can find tai chi programs at your local YMCA, health club, community center, or senior center.

3. Strength training

If you believe that strength training is a macho, brawny activity, think again. Lifting light weights won't bulk up your muscles, but it will keep them strong. "If you don't use muscles, they will lose their strength over time," Dr. Lee says.

Muscle also helps burn calories. "The more muscle you have, the more calories you burn, so it's easier to maintain your weight," says Dr. Lee. Similar to other exercises, strength training may also help preserve brain function in later years.

Before starting a weight training program, be sure to learn the proper form. Start light, with just one or two pounds. You should be able to lift the weights 10 times with ease. After a couple of weeks, increase that by a pound or two. If you can easily lift the weights through the entire range of motion more than 12 times, move up to slightly heavier weight.

4. Walking

Walking is simple yet powerful. It can help you stay trim, improve cholesterol levels, strengthen bones, keep blood pressure in check, lift your mood, and lower your risk for many diseases (diabetes and heart disease, for example). Some studies have shown that walking and other physical activities can even improve memory and resist age-related memory loss.

All you need is a well-fitting and supportive pair of shoes. Start with walking for about 10 to15 minutes at a time. Over time, you can start to walk farther and faster, until you're walking for 30 to 60 minutes on most days of the week.