Jennifer Aniston showed fans her sweaty "post-workout self-portrait" today and people can't stop talking about it.

Keep scrolling to see the snap for yourself and to find out why reactions have been so strong...

Jennifer Joanna Aniston was born on February 11, 1969, in Sherman Oaks, California.

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She's the daughter of soap opera star John Aniston and actress Nancy Dow, and began starring in stage productions during the late '80s.

Jen primarily grew up with her mother...

Her parents divorced when she was 9 and with her dad working on the infamous soap opera, Days of Our Lives, she spent most of her time with her mom.

Jennifer landed her first acting job in 1987, with an uncredited role in the movie, Mac and Me.

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She was brought up in Los Angeles, right in the heart of the action.

For the majority of her early career, Jen took on minor roles.

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Although a booming acting career was always going to be on the cards...

She comes from strong acting roots.

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Both her parents are actors and encouraged her interest in drama while at high school. So, it was only a matter of time before we saw her on the big screen.

But we <em>all</em> know what her career-defining role was...

The classic sitcom, Friends, shot Jen to stardom. She played daddy’s-girl-turned-business-woman, Rachel Green, perhaps one of the most lovable characters on the show.

She truly struck Hollywood gold.

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She won both a Golden Globe and an Emmy Award during her tenure on the beloved show. Once the world was introduced to Rachel Green, there was no looking back for Jen...

And Rachel Green very quickly became a household name.

Jennifer fitted the role so well that she was often referred to as “Rachel from Friends,” rather than her actual name. We've all been guilty of using this identification from time to time…

Our hearts were broken in 2004, however.

The beloved sitcom wrapped up after 10 seasons, leaving us to bid a reluctant farewell to our favorite group of friends.

Jen has starred in various other movies over the years...

Alongside Friends, Jen has starred in her fair share of comedies and rom-coms, such as Along Came Polly (2004), Rumor Has It (2005) and Horrible Bosses (2011).

In fact, she's become something of a rom-com native.

A cheesy rom-com just doesn't feel right without her.

She's managed to carve out a long-standing big-screen career following the conclusion of <em>Friends</em>

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From indie movies like The Good Girl to big-budget smash hits like Bruce Almighty, Jen has well and truly kept in the game.

Although, she has been able to stray away from her usual rom-com-style roles.

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Jen most recently starred in Apple TV's tense drama, The Morning Show, alongside Reese Witherspoon and Steve Carell.

In fact, she bagged a SAG award for her role in the series.

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Her portrayal of big-time news anchor, Alex Levy, impressed both fans and critics.

And she's somewhat been able to shake off her <em>Friends</em> image...

There's no doubt we'll always remember her as Rachel from Friends, but the fact that she now has such a huge movie catalog under her belt has allowed her to stray away from the sitcom slightly more than her former castmates.

Over the years, she's racked up a huge fanbase.

And this was proven when she broke a world record as the fastest time for an account to hit 1 million followers when she joined Instagram last year.

In fact, she temporarily crashed the entire app.

But it was all worth it - we absolutely live for her Instagram posts.

And her latest Instagram post has really got people talking.

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But not for the reasons you might expect.

The star took to her Instagram stories today to share her "post-workout self-portrait" with fans.

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And it solicited quite a strong reaction. Keep scrolling to take a look...

Now, we know what you're thinking...

What the hell is a "post-workout self-portrait"?


It's quite literally the imprint left behind on the yoga mat after a good old sweaty workout session. Sounds, lovely, right?

In the snap, you can see the outline of Aniston's body imprinted from the actress laying on the mat.

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The markings are so detailed, you can even see the outline of her cropped workout top.

Many were impressed by her so-called "sweat game."

People truly couldn't get enough.

Others... not so much.

Some were clearly just baffled by the post.

Take a look at the photo below:

Looks like she's been taking her workout regime very seriously! For more Jen-related news, scroll on for the shocking confession she made about filming Friends.