Portable AC units are not the cheapest or most energy efficient way to cool down a room. We know this, but we also know this ...

White House announces new $200M ballroom as part of Trump's latest makeover of 'The People's House' How Jerry Mathers, 77, ...

You might see more people wearing a neck cooling fan to fight the summer heat. But can they really help? We talk to experts about how our bodies deal with heat — and to people using the fans.