Why Do You Love That Smell? Books, Grass, And More | SciShow Compilation

It makes sense that we love natural smells like freshly cut grass and the ocean, but gasoline? And rubber bands? Science explains why.

Hosted by: Hank Green (he/him)

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Original Episodes:

[Chris_winthers]

First getting a mohawk and then a backwards cap. Truly hank is becoming the ultimate cool guy

[EatSleepBreathMovies]

I vote Hank Green to be Earth's ambassador to the aliens cause he's the best of us

[ZA-mbdi]

As an herbalist, my favorite smell is probably fresh rosemary. Like when I handle the plant and the leaves rub on me it smells amazing

[TheMunchkinita]

One of my favorite smells is when bread is being toasted. While it's in the toaster, the smell always takes me back to my childhood and visiting my grandfather, whom I didn't get to see very often before he passed. He always had a single slice of toast covered with jam or marmalade with his breakfast. It's such a simple, common smell, but to this day (it's been almost 30yrs) it never fails to take me back and remind me of my grandfather, even if it's only for a split second before I have to continue with my day.

[danieldale]

As a child I could smell rain coming. Now as a contractor I can smell water on concrete. Lucky me

[kareninthevalley]

Perfumers use the chemistry discussed in your video to create rain accords, water notes, and many others. Demeter makes single note fragrances including Grass, and one of my favorites, Dandelion, not normally a fragrance for perfumers. It's been fascinating to begin to understand the chemistry of fragrance and the basis of many accords/notes originating in Nature. Then there are all of Maison Margiela's "Replica" series of perfumes. They're meant to evoke a moment in real life. By The Fireside, Jazz Club, Whispers in the Library, are some of the themes.

[Tracy-xezu]

The scent-emotion association is real and it's STRONG. I have my late mom's bottle of perfume, one sniff is enough to make me cry.

[carolnorton]

I love the smell of fresh asphalt or fresh tarred driveways and just figured out why. As a child I lived next to new construction and streets and so it smells like the innocence of childhood.

[ADHDqueenB]

Who else can tell when snow is coming? I grew up with snowy winters, doesn't snow much where I live now. It's weird, but I love it.

[glenngriffon]

Stink bugs have an incredible defense. You only have to kill one to learn that you should not kill... at least by squashing.

[CerebralOrigami]

I love the smell of the ocean. But for me, growing up near a working waterfront, the smell of the ocean is the sea itself, seaweed, fish (sometimes pungent) and diesel. I just spent my first winter in the Florida keys and I was surprised at just how faint the ocean smell is. Also there is a lot more life in Maine waters where the water a a deep green and scuba diving at times is like being in pea soup. Whereas the water in Florida is super clear.

[rhonndajoy]

*smiles*
Reminds me of the time I was showing off my new haul from the bookstore to a colleague. He flipped a book open, put his face alarmingly close to the pristine page and inhaled deeply. I laughed and shook my head while he explained himself. Thank you

[Proxtor]

We need Scishow hats! And the proceeds goto cancer research!

[abigailsmith]

It's weird because I loved the smell of gasoline as a child and now I absolutely hate it. There was no psychological experience or anything that made me hate gas, just as I got older it smelled less good over time.

[dogs-and-destruction-channel]

Sometimes, smells can smell good or bad because of the memories they trigger. For example, I like the smell of salt water not so much for the smell, but because it reminds me of the beach and all the fun activities I do there.

[bentoth]

OMG, Huckleberry is so adorable! We need more of him, stat!

[catatonicbug]

Teslas don't have that "new car smell". They have that "Elon musk".

[twowingsstudio]

Hank, we hope you are healthy. We want you with us for a very long time!

[ladykoiwolfe]

New babies have a smell that I have heard people say they love. I think I heard they give off a scent that triggers certain chemicals in our brains meant to make us want to peotect and care for them.

[amberkat]

I love the smell of wet earth and/or pavement, the cold air before it gets cold enough to snow, fresh-cut grass, and cut watermelon.