Find out what happens to your body when you see someone you love (and more!)

Upworthy's book GOOD PEOPLE, now available - take a look!

Shop
 Explore 

Ever wonder what the science behind heartbreak is? Find the answer here.

Love doesn't have to be all about romance. It can also be about SCIENCE.

And who doesn't love some science? Let's take a look at some of the hard facts of the history and science of the heart.

Hahhhh. Get it? Limbic system = part of the brain.

FACT: By 2000 B.C., Chinese doctors had uncovered the heart's role in pumping blood throughout the body.

This diagram of the heart is from a medical book published in 1864.

Yep, they figured that ish out in 2000 B.C., as in 4,000 years before today. Also known as a ridiculously long time ago. Meanwhile (or rather, about 1,600 years later), Aristotle was busy hypothesizing that the heart was the center of intelligence. Even through the Renaissance, many great thinkers believed that the heart governed a person's emotions — "a notion so powerful that it still persists today in a different form."

FACT: Even though feelings of love come from our brain, we really can physically feel them.

Pretty cool, huh? Let's take a look at both sides of this coin.

The "happy side" of feeling love is that when you see a loved one, your brain stimulates the release of neurotransmitters that make you feel real good. Epinephrine and norepinephrine are secreted from your adrenal glands, which cause your heart to beat faster.

Yay!

Of course, those aren't the only neurotransmitters involved in love. There are SO many chemicals and hormones at play — dopamine, serotonin, oxytocin, vasopressin ... on and on. They all work together to govern sex drive, partner preference, and attachment. It's complicated science, but the bottom line is simple: When you're in love, your body reacts big time. It's far from "all in your head."

Slightly cute, mostly creepy. For more info on other chemicals involved in love, check out this video.

The "heartbroken side" of feeling love is that emotional loss activates the same region of your brain as physical pain. This can lead to great levels of neurological stress, which can actually overstimulate your vagus nerve, causing nausea, dizziness, and physical pain. That's heartbreak.

And that's why you can actually feel a broken heart.

FACT: Many animals average 1 billion heartbeats in their lifetime, no matter their size or life span.

The billion beat hypothesis says that an animal's heart will beat around 1 billion times, no matter their size or life span. Smaller animals have shorter life spans and faster heart rates whereas larger animals have longer life spans and slower heart rates.

That's heart beats per minute, life span in years, and lifetime heartbeats in billions.

Small animals have a larger ratio of surface area to mass, so they lose heat more quickly and have higher metabolic rates — which are linked to shorter life spans. As mass goes up, so do life spans while heart rates go down.

Is this all just a complicated way of saying that mice don't live very long? Maybe so.

But HUMANS defy the billion beat hypothesis. We live three times as long as we should with about twice as many heartbeats as we should be "allotted." Why? Because modern science and medicine have extended our life span. It's pretty corny, but ...

Caring for one another helps humans defy the principles of science.

Awwww. Want to catch the whole video, with even more facts about loooooooove? Here it is:

Visit Sweden

Popular

Sweden makes stunning decision to trademark its name to avoid confusion

The country is taking historic steps to fix the problem.

via Visit Sweden (used with permission)

A Swedish woman taking things into her own hands.

True

Sweden has existed for over 1,000 years, but travelers across the globe are confused because other places, inspired by the country’s untouched beauty and joyously inclusive culture, have taken its name.

Seven other places in the world call themselves Sweden, so to distinguish itself from the name-alikes, the Kingdom of Sweden is taking a bold, historic step that no country has before. It’s become the first to apply to trademark its name with the European Union Intellectual Property Office.

Visit Sweden likens the country’s problem to a luxury brand that has to contend with dupes, knockoffs, or bootlegs that fall short of the glory of the genuine article.

“It’s flattering that other places want to be called Sweden, but let’s be honest, there should only be one. Our Sweden. The one with the Northern Lights, endless forests, and the world’s best flat-pack furniture,” says Susanne Andersson, CEO at Visit Sweden.

- YouTubewww.youtube.com

By trademarking its name, Sweden will make things much less confusing for travelers worldwide. It’d be a shame for someone looking to visit Sweden’s majestic Lapland to mistakenly wind up in a place with no reindeer, Aurora Borealis, or cloudberries to be found.

The world-class research team at Visit Sweden knew it had to act when it realized that other destinations with the same name had tripped up travelers. People looking to vacation in Portland, Oregon, have accidentally wound up in Portland, Maine. Travelers yearning to experience the fall in Manchester, New Hampshire, have been deplaning in Manchester, England. “It happens more than you think!” the researchers admitted.

sweden, visit sweden, swedish vacation The Northern Lights in Sweden. via Visit Sweden, Photographer: Jann Lipka/imagebank.sweden.se

The E.U. Intellectual Property Office must act swiftly and allow Sweden to trademark its name so that travelers worldwide don’t miss the opportunity to experience an utterly unique country known for its serene landscapes, commitment to deep relaxation and personal freedom.

No one should ever miss out on staying on one of Sweden’s 267,570 islands, more than any other country. The Swedish archipelagos offer luxurious glamping, peaceful hikes, tranquil solitude and awe-inspiring, pristine nature.

sweden, visit sweden, swedish vacation A woman camping in the Swedish archipelago.via Visit Sweden, Photographer: Anders Klapp/imagebank.sweden.se

Sweden is a beautiful place to visit all year round, with bright summers, colorful falls, vibrant springs and dark, crisp winters. It is also a place to delight your tastebuds with a cuisine centered on healthy, locally sourced produce, with some preparation methods dating back to the Viking era.

The original Sweden is a place where one can relish Old World European history while also enjoying the modern pleasures of the most progressive countries in the world. Travelers can be whisked back into history by visiting the Naval Port of Karlskona, a well-preserved European naval town from 1680. Or, enjoy cutting-edge design, delicacies, art, music and culture in hip metropolitan destinations such as Stockholm or Sweden’s “coolest city,” Gothenburg.

Did we mention Sweden has an ABBA museum? Wait till the other 7 Swedens find out about that.

As you can see, Sweden is an incredibly unique destination that cannot be duplicated. It would be a tragedy for anyone intending to visit the original Sweden to mistakenly find themselves in a name-alike place that lacks its Scandinavian charm. You can do your part to stop the confusion by signing a petition to let Sweden trademark Sweden at Visit Sweden (the original).

sweden, visit sweden, swedish vacation A Swedish Midsommar celebration. via Visit Sweden, Photographer: Stefan Berg/Folio/imagebank.sweden.se

From Your Site Articles

Family

Woman who was pressured to quit her job to raise stepdaughter's baby makes a bold decision

This sparked an important conversation about family responsibility.

via Pixabay

When parents can't step up, should grandparents step in?

A story that recently went viral on Reddit’s AITA forum asks an important question: What is a parent’s role in taking care of their grandchildren? The story is even further complicated because the woman at the center of the controversy is a stepparent.

At the time of writing her post, the woman, 38, met her husband Sam, 47, ten years ago, when his daughter, Leah, 25, was 15. The couple married five years ago after Leah had moved out to go to college.

Leah’s mom passed away when she was 10.

When Leah became pregnant she wanted to keep the baby, but her boyfriend didn’t. After the disagreement, the boyfriend broke up with her. This forced Leah to move back home because she couldn’t afford to be a single parent and live alone on a teacher’s salary.

Leah’s story is familiar to many young mothers facing similar difficulties.

The father isn’t involved in the baby’s life as a caretaker or financially. Sadly, research shows that 33% of all children in the U.S. are born without their biological fathers living in the home.

Single motherhood comes with unique hardships.

via Alexander Grey/Unsplash

The new mother is a teacher and can’t afford to live on her own with a child. In 2019, a study found that out the top 50 U.S. cities, Pittsburgh is the only one where a new teacher could afford rent.

Today, Portland, OR has joined the very short list of cities where an "average teacher can afford 91.3% of apartments within community distance of their school" according to a recent study.

The stressors of taking care of the baby made Leah realize she needed help.

“But once she had the baby around 4 months back, Leah seemed to realize having a baby is not the sunshine and rainbows she thought it was,” the woman wrote on Reddit. “She barely got any sleep during the last four months. All the while Sam was helping her with the baby while I did almost all chores myself.”

“Now her leave is ending. She did not want to leave the baby at daycare or with a nanny,” the woman continued. “Sam and I both work as well.”

Leah asked her stepmother if she would stay home with the baby. The stepmother said no because she never wanted to have a baby and she has a job. “I asked why Leah can't stay home with the baby herself,” the woman wrote. “She said how she was young and had to build a career. I said many people take breaks to raise kids, and she broke down crying about how she was so tired all the time being a mom and needed something else in her life too.”

The demands of new motherhood are usually all-encompassing.

via Pixabay

After the woman told her stepdaughter no, her husband pressured her to stay home with the baby. But she refused to give up her job to raise her stepdaughter’s child. “Leah said yesterday how she wished her mom was alive since she would have had her back. She said I didn't love her, and my husband is also mad at me,” the woman wrote. The woman asked the Reddit community if she was in the wrong for “refusing to help my stepdaughter with the baby,” and the community responded with rapturous support.

"[The woman] should tell her husband to knock it off and stop trying to pressure her into raising his daughter’s baby. If he wants a family member to look after her baby while she works, then he can do it," user Heavy_Sand5228 wrote.

"This is Leah's baby that she alone chose to have. That doesn't obligate you to change YOUR life to suit her desires. The whole business of saying you don't love her because you won't quit your job to watch her baby is manipulative and messed up, and I'm shocked your husband is siding with her," user SupremeCourtJust-a** added.

Leah and many women like her are in this situation because, in many places, teachers are underpaid, rent is high, and not all dads pay child support, even those required by law.

Another commenter noted that the baby is much more the father’s responsibility than the stepmother's. "To add, Leah should consider seeking child support from her ex. Her kid should be getting that money," Obiterdicta wrote.

While there are resources to help stepparents connect with their stepchildren and step-grandchildren, it's important to remember that the responsibility to raise a child ultimately rests with the parent(s).

This article originally appeared last year.

From Your Site Articles

family

Health

Hospice nurse reassures people worried by recent footage of Jimmy Carter at 100

Carter has been in hospice care for nearly 2 years.

via Hospice Nurse Julie and Commonwealth Club/Wikimedia Commons

Julie McFadden and former President Jimmy Carter.

Former President Jimmy Carter is known for being one of the most beloved former presidents in American history for his resolve to use his talents to help others, whether it was eradicating the Guinea worm or his work with Habitat for Humanity into his late 90s. Carter says that his faith is the big reason for his resilience. “I have one life and one chance to make it count for something,” he said. “My faith demands that I do whatever I can, wherever I am, whenever I can, for as long as I can with whatever I have to try to make a difference.”

The man who held the presidency from 1977 to 1981 went into hospice in February 2023 but has lived much longer than most expected. Carter has made 2 public appearances in that time, the first in November 2023 for the funeral of his wife of 77 years, Rosalynn and on October 1, 2024 for his 100th birthday. When Carter was wheeled into his wife’s funeral, some family members expressed shock and worry about Cartter’s appearance.

— (@)

Since beginning hospice care, Carter has appeared frail and gaunt without expression and mouth agape. It shouldn’t be shocking for a person who has reached the age of 100 to appear so fragile, but it’s right to be concerned that he may be uncomfortable in such a state. However, Julie McFadden, also known as Hospice Nurse Julie, settled a lot of people’s fears in a TikTok video where she explained Carter’s appearance and why he’s most likely comfortable during his transition.

McFadden has assisted over a hundred people in their final days and is the author of the bestseller, "Nothing to Fear."

@hospicenursejulie
#greenscreenvideo #greenscreen Jimmy Carters 100th birthday! #hospicenursejulie #hospicenurse #jimmycarter #education

What is Jimmy Carter's condition?

“I have been tagged in this Jimmy Carter turns 100 years old today video,” she begins her viral TikTok with over 600,00 views. “So many times people asking me, why does he look like this? Is he okay? Does this mean anything? As a hospice nurse, this video was not alarming to me. Jimmy Carter, to me, looks just like someone who was 100 years old on hospice and getting towards the end of their life.”

She then speculated on what his life is like at age 100. “Jimmy Carter is likely sleeping 20 to 22 hours a day. He is likely not really eating and drinking, which is all normal and to be expected at the end of life. So that's why he looks so thin. He looks cachectic. His body is slowly shutting down and the more we just let his body be the guide, the better he will be.”

A lot of people are concerned about the way that Carter’s mouth seems to be permanently open. McFadden says that is due to muscle wasting. “His mouth is hanging open because it takes muscles to keep your mouth shut. And at the end of life, those muscles relax. So he is likely so relaxed that when he's sleeping, which is most of the time, even when he's in a wheelchair, he's asleep, and his muscles relax, so his mouth hangs open.”

McFadden also addressed many people's concerns: Should Carter have been brought outside to celebrate his birthday with his family in such an advanced state? Should he have been in front of the cameras?

“In my opinion, it's up to the family. The family knows that person best,” McFadden said. “From what we know of Jimmy Carter, he was a family man who loved being around his family. So why not be around him and celebrate his one hundred? One-hundredth birthday and bring family around, bring him outside. They know his personality. They must think he would love this. So let's do it. We don't have to keep dying people hidden away.”

McFadden is such an incredible gift because we tend to lock away the dying and talking about death and hospice is a very uncomfortable topic for most. This lack of information leads us to believe that someone in Carter’s position suffers. But, according to McFadden, he’s probably comfortable and relaxed. McFadden knows that when people better understand Carter’s condition, they will probably feel better about their final days as well.

From Your Site Articles

Find out what happens to your body when you see someone you love (and more!)

Ever wonder what the science behind heartbreak is? Find the answer here.

Love doesn't have to be all about romance. It can also be about SCIENCE.

FACT: By 2000 B.C., Chinese doctors had uncovered the heart's role in pumping blood throughout the body.

FACT: Even though feelings of love come from our brain, we really can physically feel them.

FACT: Many animals average 1 billion heartbeats in their lifetime, no matter their size or life span.

Caring for one another helps humans defy the principles of science.

The country is taking historic steps to fix the problem.

This sparked an important conversation about family responsibility.

Leah’s story is familiar to many young mothers facing similar difficulties.

Carter has been in hospice care for nearly 2 years.

What is Jimmy Carter's condition?

They're funny because they're true.

Gordon shared 15 of his oh-so-real comics with us. They're all funny 'cause they're true.

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

I love Gordon's comics so much because they're just about the reality of parenting — and they capture it perfectly.

"I just hope this is a reminder to everyone that the simplest act of kindness from you can completely brighten a stranger’s day."

Passengers were annoyed, but commenters had some empathetic theories.

Commenters on the video — unlike some passengers on the flight — had a lot of empathy for the mysterious standing woman.