Does it seem like new moms have colonized your Facebook feed? A study found that new mothers spent more time on Facebook after giving birth. Whether the social media binge was a mood upper or downer depended on how they used it. If they were posting to friends who were mostly relatives, the online time was a boon. But logging on and updating too frequently was associated with more stress (a huge beauty killer).

If you’re a new mom, do you need to spend all that time posting pictures of your sweet cherub? If you’re addicted to social media, blogging might be a better bet: Another study showed that new moms who blog feel more supported and less alone.

QUIZ: How Stressed Are You?