Ah, Valentine's Day. Some people hate it, others love it, but the truth of the matter is we're all thinking about it. (If only because heart-shaped chocolates are taking over drug stores nationwide.) Whether you're attached, flying solo, or somewhere in between, there's bound to be something on your heart's mind. From how sex can improve your health to the ultimate guide to contraception and the science of a broken heart (ugh, sorry...), check out these resources just in time for Cupid's favorite holiday.

Relationships and Love

The Surprising Health Effects of Love
It's not just about roses and candlelit dinners. Romance can have a positive (and negative) impact on our health and wellbeing.

Sex with an Ex: Are Post-Relationship Hookups a New Normal?
On again, off again, then back on — turns out those tumultuous relationships are pretty common among young adults. But what do they mean for personal development, and is “ex sex” the new normal?

Why Monogamy Might Be Good For Your Health
Turns out monogamy is actually uncommon in most human cultures around the world. So what are the benefits to bonding with just one babe?

Is My Partner Bad For My Health?
Our romantic partners may not share every interest with us, and that's okay. But when do quibbles over exercise and eating habits become reasons to call it quits?

The Science of a Broken Heart
Whether it’s the result of a breakup or the death of a loved one, heartbreak can be an overwhelming experience. Fortunately, there are lots of tips for coping with the pain.

Does Love At First Sight Really Exist?
It happened to Cinderella and Prince Charming, so it can happen to us too, right? Find out if love at first sight is just for fairy tales.

20 Bad Habits That Could Hurt Your Relationship
Want to lose the love of your life? Didn’t think so. Avoid these bad habits that could harm a happy relationship.

The Dirt On Dating: My Open Relationship
Do committed relationships require being monogamous? One Greatist staff writer opens her mind to open relationships.

15 Active Winter Date Ideas
Dinner and a movie is soooo last summer. Check out this list of active winter dates that will keep the heart (and the romance) pumping.

Will Living Together Ruin My Relationship?
Get close and cozy or give each other some space? Living together can change a relationship for the good and bad.

Study Finds Same-Sex Marriage Could Reduce Stress
Marriage goes way beyond the tax benefits. Studies have shown that heterosexual married couples are generally less stressed — and a new study shows the same goes for homosexual couples, too.

Become a Workout Power Couple
Hit the gym as a couple to help strengthen bonds (and biceps!).

Modern Intimacy: Love's Amazing, Love Hurts
In the first of a series of columns on modern relationships, psychiatrist Dr. Mark Banschick explains why intimacy is so appealing — and so difficult.

19 Smart Ways to Fix a Stale Relationship
For people in long-term relationships, “less passionate” phases are bound to happen. They also suck. But never fear — we’ve got the scoop on how to break out of a relationship rut.

Why We're Attracted to Assholes
The dream-date has gorgeous hair, beautiful eyes, and a breathtaking smile. But that same catch soon turns out to be selfish, unreliable, and unstable. Sound familiar? Read on to find out why men and women keep falling for jerks.

I Virtually Do: How Social Media Is Changing Marriage
If you like it then you shoulda’ put a ring on it. Or not? Find out how the Internet is changing the way we plan that walk down the aisle.

Health and Fitness in Relationships: Too Many Cooks In the Kitchen?
Former staff writer Kelly Fitzpatrick takes a personal look into the world of health and fitness within relationships. This time around, she talks to bloggers Alice and Martin about cooking as a couple.

Health and Fitness in Relationships: Workout Power Couple
Former staff writer Kelly Fitzpatrick takes a personal look into the world of health and fitness in relationships. This time around, she talks to trainer Andrew Kalley and gym-wear designer Kelly Dooley.

Health and Fitness in Relationships: Eating Within the Rules
Former staff writer Kelly Fitzpatrick takes a personal look into the world of health and fitness in relationships. This time around, she talks to Marnina Cowan and Seth Coburn, food bloggers with some big dietary restrictions.

Sex, Sex, and More Sex

How Sex Can Improve Our Health, Besides It Being Sex
Getting lucky tonight? You may be in for more than you bargained for — in a good way! Read on to learn about the unexpected health benefits of sex.

How Much Sex Is Too Much Sex?
While gettin’ it on is a budget-friendly activity that’s both good for your health and your fitness, we explore whether it's possible to have too much of a good thing.

The Ultimate Guide to Safer Sex [Infographic]
A roll in the hay can be a good time, but there’s more to sexual health than just getting it on. Here’s what you need to know about safer sex.

Study Looks At Sleep and Post-Sex Desires
In a 2011 study, scientists looked at the tendency to fall asleep after sex, and what happens to the partner left wide-awake.

How Does Sex Reduce Stress?
Let’s get it on— turns out there are scientific reasons why sex can reduce stress.

Have Sexy Dreams By Sleeping On Your Stomach
So you want to have a more exciting nightlife? Sleep on your stomach. A new study suggests those who pass out prone have more erotic dreams.

WIFI May Kill Sperm, Study Suggests
Tech nerds, take note: According to a new study, the radiation from wireless Internet may kill sperm cells.

How Much Do We Really Think About Sex?
Let’s not just talk about it. Almost everyone thinks about sex, but is it possible to know how often anyone’s mind wanders under the covers?

The Ultimate Guide to Contraception [Infographic]
Contraception is key for a healthy sex life. Here’s everything partners need to know to make time between the sheets as safe (and baby-free) as possible.

11 Surprising Condom Facts for World AIDS Day
It's time to brush up on sexual health. Find out how condoms are made and learn 11 condom facts you might not have known.

Burning Questions

Can a New Nasal Spray Really Help Women Orgasm? 
For some women, reaching orgasm may be as difficult as reaching Nirvana. Now, there’s a new nasal spray called Tefina that claims to help women attain their sexual needs.

Do Aphrodisiacs Really Work?
Looking for a little extra love? We’ve dug deep to find out if aphrodisiacs really do the trick behind closed doors.

Sex and Sports: Refrain Before the Big Game?
Many coaches say athletes should skip sex before the big game. But will doing the deed really hinder performance on the playing field?

Is Internet Porn Killing Your Sex Drive?
Just checking email? Almost half of Internet users say they look at porn online, and the habit may be taking a negative toll on their personal lives.

Can Straight Men and Women Be "Just Friends"?
Can heterosexual men and women be friends, or do they only bond for the hope of some sweet, sweet lovin’ down the road? We investigate the science behind male-female friendships.

Is It OK to Have a Fetish?
Sneezes, feet, and armpit hair: Some people take it to the extreme in the bedroom. Is there anything wrong with having a fetish?

Should Men Get the HPV Vaccine?
HPV is the most common STI around, and ladies aren't the only ones at risk. We explore the controversy over use of the HPV vaccine for guys.

Is Dating Dead? Is This the Right Question to Ask?
OP-ED: Is dating dead? Are modern technologies killing it? One Greatist staff writer weighs in.

Why We Kiss
Locking lips is something we’re all pretty familiar with, but where does that urge to plant a big wet one on someone come from? Turns out it’s not just about having fun. There’s some biology to thank, too!

What topics on sex, love, and more are you dying to read? Let us know in the comments below or tweet directly at @greatist.