Here are some of this week's top medical stories.
Cancer preventable
Forty percent of all cancers worldwide could be prevented if people protected themselves against infections and made simple lifestyle changes.
That's the word from a new report which lists nine infections that can lead to cancer and urges health officials to make better use of cancer-preventing vaccines.
Experts say cervical and liver cancer -- which can both be prevented with vaccines -- should be top priorities.
More people are turning to the internet to learn about their health
New research shows more than half of Americans looked up health information on their computers last year.
But only 5 percent used email to communicate with their doctors.
Take a break
You may want to go for a walk or have a cup of coffee the next time you learn something new.
A new study suggests taking a break allows your brain to better absorb new information, helping you remember it.
Scientists have long known that sleep improves memory but this is one of the first studies to suggest that even taking a short rest while you're awake helps you retain information.
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