The main cause of mouth cancer, tongue cancer and throat cancer is__________.

Read the following passage, then choose the correct answer to questions

 Did you know that on average we forget about 80% of the medical information a doctor might give us? This fascinating information came to light as a result of a study carried out by Utrecht University. What is even more interesting is that almost half of what we think we remember is wrong.

Why do you think this is? Well, it’s not as complicated as you may think. You see, going to the doctor fills most people with anxiety and when we are really nervous and stressed we are more likely to focus on the diagnosis rather than the treatment. Therefore, we know what is wrong with as but have no idea what to do about it.

Here are some good tips to keep in mind when seeing a doctor. Always write down any important information. What would be even better is, if your doctor agreed, to record your consultation. This way, you can replay the advice at home, where you are more likely to absorb it. If you believe the situation is serious or you’re really worried, seek the help of a family member. Just ask them to accompany you to listen in. This way you can be absolutely sure about what the doctor has told you and avoid falling into the same trap that most people do.

According to the passage, the information doctors give us _________.