There are lots of ways to improve your fitness without having to join a gym. It's also a great way to make the most of your free time.
By keeping physically active, you're making sure that your joints and body organs are kept in good working order. Exercise can also help maintain your weight at a healthy level and can protect you against catching coughs and colds on a regular basis.
Other benefits are an increase in your energy level and brain activity. Knowing that you're looking and feeling good can also give your self-confidence a real boost.
If you're under 18, you should try to do a total of 60 minutes of physical activity every day. You don't have to do it all in one go, but in chunks of at least 10-15 minutes throughout the day. This includes everything from pumping iron in the gym to walking up stairs instead of taking the lift. The key thing is that the activity should increase your heart rate and make you feel warmer.
If you're over 18, aim for at least 30 minutes of exercise at least five days a week.
If you do want to start exercising and getting fit, the best idea is to try out a whole range of physical activities to see which ones you enjoy the most. Once you've decided which things you like, you can plan what type of exercise you're going to do and when.
If you've decided to start an exercise routine, it's important to go and see your doctor for an examination. Your doctor will be able to advise you on how much exercise you should be doing to begin with. They'll also let you know if you have any medical conditions, like knee or back pain, that can limit the type of exercise you do.
Getting fit isn't all about gyms - some forms of exercise won't cost you a penny, and most types can easily be slotted into a busy lifestyle without having to find an extra few hours in your day.
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Getting fit isn't just something you have to do by yourself. Playing team sports like football, hockey or netball is great exercise, but is often more enjoyable because you're with a group of friends.
Your school, college or university may run sessions in the evening, or you might want to get involved with a local team. You can find details of local clubs on the internet, in the phone book or at your nearest leisure centre. Your local authority can also give you information of sporting activities in your area.