Brain scans reveal that when someone is shown a photo of someone they love, a sort of cortical de-activation occurs, particularly in the frontal cortex which is involved in making judgements. This explains how you can be more forgiving and maybe even defensive of the people you love.

What consistently ranks among the top reasons why couples fight? Sex and money.

According to The Knot, the most popular couple names for 2014 were:

The most common way (39% of survey respondents of 2,373 total) that 18 to 34-year-olds met their current significant other was through mutual friends. "Out in a social setting" ranked #2 with a total of 22%.

A LiveScience article titled "Beauty Works Like a Drug on the Brain" explains that attractiveness seems to stimulate the same part of the brain as the opiod morphine.

Currently, around 1% of the population is asexual, but that doesn't mean that these individuals are incapable of romantic love.

Multiple sources say that chocolate contains phenylethylamine (PEA), a neurochemical that acts a releasing agent of norepinephrine and dopamine. We also produce more PEA when we're first attracted to someone, which causes those dizzying feelings.

Some people identify as demisexuals, which means that sexual attraction is only possible for them when there is first a deep emotional connection.

Divorce rates among Americans have been declining for the past few decades, but an article in Time magazine says that marriage is still on the rocks (statistics show that many children grow up with single parents that never get married in the first place). The lowest amount of divorce rates are seen in Italy (30.7%).

Body language experts such as Patti Wood believe that sleeping positions can reflect what's happening in our relationships.

Unless you're ready for commitment, it's probably best you didn't sign "love" in a card or letter. Forty-three percent of women would prefer it if this would never happen.

The latest statistics reveal that the you can find the highest number of same sex couple households in California, approximately 92,138, and the least in North Dakota, around 703.

Love actually does make you feel warm all over.

Research conducted by Global Web Index shed light on the fact that there are more men than women on Tinder, and many of them are already in a relationship.

Watching movies can help with marital bliss, says Matthew Johnson, Director of the Marriage and Family Studies Laboratory at Binghamton University. Johnson says, "The key is to talk with your parter about your relationship in the context of a movie."

Although it is impossible to pinpoint the first use of a diamond engagement ring, the first recorded account dates back to 1477 when Archduke Maximilian of Austria presented a ring set to Mary of Burgundy at the suggestion of an advisor.

The "addiction" we feel in love enables us to take more risks in the process of wooing that person, according to Medical Daily.

Marriage can improve long-term health, especially in the case of men, and the death of a significant other can put you at risk for earlier death. It is unknown whether this is directly related to emotional and physical connection, or if it's because couples encourage one another to mind their health.

Subjects in one study stared at a computer with names flashing before them. When the name of their significant other popped up, their ability to complete difficult tasks improved by a large margin. We can say that we're intelligent, or at least more efficient, when in love.

Dr. Helen Fisher, author of Why We Love, says that after getting dumped, for a period of time our feelings for that person grow stronger.

The results of one survey suggests that road trips can help your relationships, because they offer uninterrupted quality time, which many couples can use to talk about what's important to them.

The risk of a "secret love" being revealed actually increases romantic feelings for those involved due to increased levels of phenylethylamine (PEA).

Ever wonder why so many men fall in love with their secretaries and nannies? That's because one of the greatest predictors of love is proximity. If you're physically close to someone, it increases emotion.

A study from the University of Maryland suggests that being in love interferes with your brain's ability to stayed focused and on task.

Humility encourages relational repair in romantic couples. One study revealed that humility in one partner increased the likeliness of the other partner to forgive them in a long-distance relationship.