This research adds to the huge amount of evidence that also suggests they can be bad for our head too.
Not only would that be a terrible burden on families who are already going through tough times, it would be bad for our economy.
As months go by, that unaltered course will be bad news for our economy and for stocks.
That would be bad for families, it would be bad for businesses, and it would drag down our entire economy.
WHITEHOUSE: Weekly Address: Congress Must Extend the Middle Class Tax Cuts | The White House
And that would be the wrong thing to do for our economy, it would be bad for middle-class families, and it would be bad for businesses that depend on family spending.
Calling attention to yourself as a woman, rather than as the gender-neutral professional we tried to be (ridiculous only in hindsight) was bad for our careers.
He fears this will mean that we don't get to see information that challenges our world view, and will ultimately be bad for democracy - if you're an American in favour of gun control, for instance, you will tend to see information that reflects your views, while members of the National Rifle Association will be served up sites that chime with their stance.
It's not such a bad thing, when these guys are going to be in our living rooms for a year, for someone to suggest wider ties, whiter teeth and a little wit.
It is a bad time for our wallets and purses - but a good time to be launching a new political programme.
Not because the information is bad, although it might very well be skewed, but once it is released for our consumption-what do we do with it?
"We are afraid money will be taken from our companies, and afraid that taxes will increase a lot and the situation will become bad for companies our size , " she says.
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