The BuzzFeed Brain/Heart Matrix

Find out which stories blew up on Twitter (the brain of the internet) and Facebook (the heart).

Design by John Gara for BuzzFeed

If Twitter is the brain of the social web — lots of chatter, commentary, and argument — then Facebook is the heart — a place for liking, sharing, and emotions. BuzzFeed analyzed a selection of top posts from the past week to find out what percent of their traffic came from Twitter and what percent came from Facebook. Above, our Brain/Heart Matrix for May 1 through May 7.

The Most Brainy Stories

These got the highest percentage of traffic from Twitter of the stories we looked at:

5. "Deep Inside The Biggest Little Dildo Factory In America"

Via buzzfeed.com

This BuzzReads story got 11.14% of its traffic from Twitter.

4. "Federal Government Hunkers Down For Massive Cyber Attack Tuesday"

Via buzzfeed.com

11.28% of this Politics story's traffic came through Twitter.

3. "The Expendables: Inside America's Elite Search And Rescue Dog Training Center"

Via buzzfeed.com

Another BuzzReads story; this one got 16.67% of its traffic from Twitter.

2. "7 Female Musicians Discuss Their Experiences With Sexism"

Via buzzfeed.com

This BuzzFeed Music piece got 23.33% of its traffic from Twitter.

1. "Jason Kidd Is Turning Into A Ghost"

Via buzzfeed.com

26.25% of this BuzzFeed Sports story's traffic came from Twitter.

And The Most Heartfelt

These stories got the highest percentage of their traffic from Facebook:

5. "The Best Of 'First-World Cat Problems'"

Via buzzfeed.com

This BuzzFeed Animals story got just over half — 51.78% — of its traffic from Facebook.

4. "What It's Like Shopping At Forever 21"

Via buzzfeed.com

This Fashion post got 54.38% of its traffic from Facebook.

3. "The 9 Types Of Hangover We've All Endured"

Via buzzfeed.com

56.62% of this BuzzFeed UK story's views came from Facebook.

2. "The 21 Most Awkward Moments In Handshake History"

Via buzzfeed.com

Terrible handshakes are popular on Facebook — 57.64% of this story's traffic came from the social network.

1. "27 Things You Had To Deal With As The Only Black Kid In Your Class"

Via buzzfeed.com

This story got the highest percentage of Facebook traffic of all — a full 71.01% of its over a million views came through Facebook.