It's that time of year again when millions of Americans vow to create good habits and break bad ones. The psychologist behind PsyBlog explains why it is so difficult to modify our behavior -- and to stick with the change.
One section of the health law says its wellness programs can't require participants to give information about guns in their homes. But public health scholars criticize the measure because they say it keeps doctors and nurses from doing their jobs.
Many health experts say we should eat less salt, but that's not easy. Salt is added to almost everything that we cook or bake. Are we born with a taste for that much salt, or do we just like what we've always eaten? Scientists say it's some of both.
First responders are trained to rescue, help and save. In Newtown, Conn., many of the police officers, firefighters and EMTs who rushed to Sandy Hook Elementary School last week are struggling to cope with the fact that there was little they could do to help.
Scientists recently sparked controversy when they made dangerous new forms of bird flu. The National Institutes of Health is about to put in place a new system for reviewing this kind of work in the future.
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