If you have an addiction, you're not alone. According to the charity Action on Addiction, 1 in 3 people are addicted to something.

Addiction is defined as not having control over doing, taking or using something to the point where it could be harmful to you.

Addiction is most commonly associated with gambling, drugs, alcohol and nicotine, but it's possible to be addicted to just about anything, including:

• work – some people are obsessed with their work to the extent that they become physically exhausted; if your relationship, family and social life are affected and you never take holidays, you may be addicted to work
• internet – as computer and mobile phone use has increased, so too have computer and internet addictions; people may spend hours each day and night surfing the internet or gaming while neglecting other aspects of their lives
• solvents – volatile substance abuse is when you inhale substances such as glue, aerosols, petrol or lighter fuel to give you a feeling of intoxication
• shopping – shopping becomes an addiction when you buy things you don't need or want to achieve a buzz; this is quickly followed by feelings of guilt, shame or despair

There are lots of reasons why addictions begin. In the case of drugs, alcohol and nicotine, these substances affect the way you feel, both physically and mentally. These feelings can be enjoyable and create a powerful urge to use the substances again.

Gambling may result in a similar mental "high" after a win, followed by a strong urge to try again and recreate that feeling. This can develop into a habit that becomes very hard to stop.

Being addicted to something means that not having it causes withdrawal symptoms, or a "come down". Because this can be unpleasant, it's easier to carry on having or doing what you crave, and so the cycle continues.

Often, an addiction gets out of control because you need more and more to satisfy a craving and achieve the "high".

The strain of managing an addiction can seriously damage your work life and relationships. In the case of substance misuse (for example, drugs and alcohol), an addiction can have serious psychological and physical effects.

Some studies suggest addiction is genetic, but environmental factors, such as being around other people with addictions, are also thought to increase the risk.

An addiction can be a way of blocking out difficult issues. Unemployment and poverty can trigger addiction, along with stress and emotional or professional pressure.

Addiction is a treatable condition. Whatever the addiction, there are lots of ways you can seek help. You could see your GP for advice or contact an organisation that specialises in helping people with addictions.

You can use the following online directories to find addiction treatment services in your area:

• Alcohol addiction services
• Drug addiction services
• Stop smoking services

To speak to someone anonymously about any type of addiction, you can call the Samaritans free on 116 123.