It is important to be fit, everyone knows that. Your physical fitness has a big impact upon how you feel about yourself, and how much effort your body has to expend in order to keep working. Lack of physical fitness has supposedly reached an epidemic proportion in America, though the truth is that Americans are obsessed with physical fitness, and TV doctors and celebrities alike make a fortune through selling fitness videos and books to the public. Unless you're planning to buy 'em all and use them as weights to lift up and down every day, none of these will ever do your physical fitness any good at all.

The best way to improve your physical fitness is by incorporating regular activity into your daily routine. It is not necessary to take out full membership of your local gym, or even attend one exercise class. What it does mean is choosing an activity that increases your heart rate, or improves your strength and general flexibility. Walking a few more blocks, doing some gardening or housework, climbing the stairs, are all examples of something that can fit quite easily into your routine, but which can also increase your physical fitness. Taking the elevator, driving the car to the shop at the corner of your street, and spending more time in bed are all things that will not improve your fitness level.

A healthy lifestyle cannot be a fad, or something that you will do 'next year'. It should be on your 'to-do' list all year round, not just as a New Year Resolution that you never intend to keep. Once you start on an exercise regime, you will need to keep that up for the rest of your life; or your physical fitness will be lost, and you will have to start all over again. Without regular exercise, the muscles reduce, and fat takes its place (muscles do not become fat, they merely move over to make more room for it if they aren't used). It is therefore important that you choose a regime that is going to keep you interested in the long term; every year throws up a new 'fitness fad', but most people take them up and then discard them after a fortnight. Instead, choose something that you enjoy. If the thought of being instructed on stepping up and down on a plastic board fills you with scorn, then you might try something else - martial arts are always popular, and a physical fitness regime which incorporates some kind of team sport will also help to keep you interested.

Remember: physical activity everyday is the key to fitness, and that is what is important. Improving your physical fitness can provide you with more energy, and will help you to feel more positive about yourself.