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Every few months, a new study comes out that claims to have unleashed the secrets of human romance. It’s a new technique to predict whether a relationship will last, or a new way to revive the spark of passionate love, or a new study that says relationships are doomed. They make great headlines, but a few months later, another study comes along and says the key to love is found somewhere else.

Here’s some of the headline-making, occasionally contradictory research on love and relationships that’s been bouncing around since last Valentine’s Day:

Are ‘Hookups’ Replacing Romantic Relationships On College Campuses?

Researchers Shocked to Find That Hookup Culture Is Bullshit

Want a Better Relationship? There’s An App for That

One-Third Of Cheaters Have Secret Social Media Account

‘Fidelity Hormone’ Could Keep Men From Straying

Poor Sleep Can Leave Romantic Partners Feeling Unappreciated

Why Fertile Women Are More Aloof

Does ‘I Love You’ Mean Your Relationship Is In Trouble?

Couples Who Travel Together Have Better Sex Lives

Why Married People Are Smug and Singles So Carefree

UC Davis Study Shows Lovers’ Heartbeats Match

Want A Happy Marriage? Get Angry

Son-In-Law Key To Lasting Marriage

Is Online Gaming Messing Up Your Marriage?

Selfless Acts For Spouse Essential Part Of Healthy Love

Husbands Who Do Housework May Have Less Sex, Study Says

Marriage Drives Women To Drink, Study Says

Marriage Expectations: Young People Expect Marriages To Last, Study Says

Marriage Research: Honeymoon Phase Is A Myth, Study Finds

Secrets Of Lasting Love Are Hidden Inside The Brain Say Scientists

There’s No Such Thing as Everlasting Love (According to Science)

The takeaway? Love is confusing. Let’s just all appreciate how awesome chocolate is instead. Because there’s no conflicting research about that at all.

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