Increasing the number of steps you take every day may slow cognitive decline in older adults who already have biological signs of early Alzheimer’s disease, according to a new observational study. The ...

While we were once proud as a nation of our yellow and wonky smiles, the UK teeth-whitening market has grown rapidly in recent years. Now, it is easier than ever to achieve a pearly white Hollywood ...

How far does freedom of religion really go? This quiz tests what the First Amendment protects and what crosses the legal line.