For example, someone who hasn't exercised for years shouldn't rush into running miles a day or pounding the treadmill. Not only will the struggle to do so leave you feeling disheartened and demotivated, you're also far more likely to injure yourself and set your fitness levels back further.
The same goes for people who suddenly start starving themselves. Diets that severely restrict calories or the types of food 'allowed' can lead you to be deficient in the nutrients and vitamins that your body needs.
So, if you need to lose weight, what should you do?
Energy needs and weight lossYour body uses food for energy. It stores any excess energy as fat. This means if you eat more food than your body needs for daily activities and cell maintenance, you'll gain weight.
To lose weight, you need to get your body to use up these stores of fat. The most effective way to do this is to:
- reduce the amount of calories you eat
- increase your levels of activity.
Introduce changes graduallySmall changes can make a big difference. One extra biscuit a week can lead you to gain 5lb a year – cut that biscuit out of your diet and you'll lose the same amount.
You're also more likely to stick to, say, swapping full-fat milk for semi-skimmed or making time for breakfast each morning than a diet that sets rules for all foods.
You should think of weight loss in terms of permanently changing your eating habits. While weight-loss goals are usually set in term of weeks, the end game is to sustain these changes over months and years, ie lifestyle change for life.
Increase your activity levelsSomeone who increases the amount they exercise, but maintains the same diet and calorie intake, will almost certainly lose weight.
No matter if you hate gyms – even light exercise, such as a short 20 minute walk, will be beneficial if done most days of the week.
Every single time you exercise more than usual, you burn calories and fat.
There are lots of ways to increase the amount of activity you do. Team sports, racket sports, aerobics classes, running, walking, swimming and cycling will all improve your fitness levels.
Find something you enjoy that's easy for you to do in terms of location and cost. You're then more likely to build it into your routine and continue to exercise, despite inevitably missing the odd session through holidays, family commitments, etc.
- Get out and about at the weekend. Leave your car on the drive and walk to the shops. Try to incorporate longer walks into outings to the park, coast or countryside and take a picnic, so you're in control of what you are going to eat that day.
- Every extra step you take helps. Always use the stairs instead of the lift, or get off the bus a stop before the usual one and walk the rest of the way.
- Use commercial breaks between TV-programmes to stand up and do exercise, or consider using an exercise bicycle in the living room while watching your favourite programme.