Surprising addiction 1: Surfing the internet

You may think that browsing the internet is nothing more than a pleasant way to pass some time. However, researchers in China revealed that internet addiction actually alters the brain in a similar way to addictions to drugs and alcohol. It is thought that sufferers of Internet addiction disorder (IAD) could face similar symptoms to those suffering from other addictions, including withdrawal symptoms. One study of users of internet-ready smartphones found that many are so addicted to their device they now hear "phantom vibrations" in their desperation to receive a message.