Interesting. I never thought about it before... (so I googled, I love me some google lol)

http://menshealth.about.com/od/relat...Postpartum.htm
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10% of fathers depressed after birth

According to research published in the journal Pediatrics, almost as many men suffer depression after the birth of a child as do women. Postpartum depression in women is well documented but until recently very little work has been undertaken regarding the psychological effects on men following the arrival of a new baby.....

....The initial high that many fathers experience after the birth of a child can give way to feelings of isolation and depression.

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