Love not enough to keep couples together

Related: Behavior

1. Behavior
   1. 4 ways to keep your cool when you're mad
   2. Men and women really do see things differently
   3. Glass shape may influence how fast you drink
   4. Shy people are better at reading facial expressions
   5. Could you go 10 weeks without lying?
2. Top health stories
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   3. Don't curse the cold: Shivering may help burn body fat
   4. Fewer kids die in crashes but it's still too many, CDC says
   5. Drug companies, government team up in hunt for cures
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