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4 Plants That Are Great for Humans

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A quarter of all prescription drugs in the U.S. come from substances that are found only in plants. In this episode of SciShow, we take a look at four of these talented plants who make our lives better. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Linnea Boyev, Tomasz Jonarski, Chris Peters, Philippe von Bergen, Will and Sonja Marple, and Mark Terrio-Cameron. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3358962/ http://www.ncbi.nlm.nih.gov/pubmed/14506884 http://www.ncbi.nlm.nih.gov/pubmed/19123171 http://www.who.int/medicines/publications/essentialmedicines/en/ http://www.popularmechanics.com/science/health/a9388/how-it-works-atropine-the-nerve-gas-antidote-15859092/ http://www.wsj.com/articles/SB10001424052748704111704575354911834340450 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC527695/ http://trstmh.oxfordjournals.org/content/100/6/505.full.pdf+html http://www.nobelprize.org/nobel_prizes/medicine/laureates/2015/advanced-medicineprize2015.pdf http://www.diabetes.co.uk/diabetes-prevalence.html http://onlinelibrary.wiley.com/doi/10.1002/pdi.606/abstract http://plants.usda.gov/java/noxious http://archive.wilsonquarterly.com/issue/what-nature-worth http://www.kew.org/science-conservation/plants-fungi/catharanthus-roseus-madagascar-periwinkle https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1240518/ http://jncc.defra.gov.uk/page-1365 https://www.cbd.int/information/parties.shtml http://www.iucnredlist.org/details/39147/0 Image Credits: https://commons.wikimedia.org/wiki/File:Early_writing_tablet_recording_the_allocation_of_beer.jpg https://commons.wikimedia.org/wiki/File:Koffein_-_Caffeine.svg https://commons.wikimedia.org/wiki/File:Nicotine.svg https://commons.wikimedia.org/wiki/File:Morphin_-_Morphine.svg https://commons.wikimedia.org/wiki/File:Atropine.svg https://commons.wikimedia.org/wiki/File:Dilated_pupil.gk.jpg https://commons.wikimedia.org/wiki/File:Artemisinin.svg https://commons.wikimedia.org/wiki/File:Artemisia_annua_West_Virginia.jpg https://commons.wikimedia.org/wiki/File:Tu_Youyou_5012-2015.jpg https://commons.wikimedia.org/wiki/File:Quinine.svg https://commons.wikimedia.org/wiki/File:Starr_020518-0005_Cinchona_calisaya.jpg https://commons.wikimedia.org/wiki/File:Chloroquine.svg https://commons.wikimedia.org/wiki/File:Malaria.jpg https://commons.wikimedia.org/wiki/File:Natural_anti-malarial_(4738072658).jpg https://commons.wikimedia.org/wiki/File:%E8%91%9B%E6%B4%AA.jpg https://commons.wikimedia.org/wiki/File:Metformin.svg https://commons.wikimedia.org/wiki/File:Galega_officinalis1UME.jpg https://commons.wikimedia.org/wiki/File:Malaysia_(orthographic_projection).svg https://commons.wikimedia.org/wiki/File:Symphony_Lake,_Singapore_Botanic_Gardens_-_20041025.jpg https://commons.wikimedia.org/wiki/File:Catharanthus_roseus24_08_2012_(1).JPG
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Text Comments (1965)
John Pick (6 days ago)
Plants have the Doctrine of Signature that indicate to an Herbalist their beneficial medicinal uses.
alex mejia (13 days ago)
They forgot weed
Sandhiya Ann (15 days ago)
I live in Malaysia
freddie naputi (22 days ago)
Can y'all please do an episode on the Moringa oleifera plant?
Igor Kisic (23 days ago)
malaria did not kill nearly half of all people who died so far...thats a myth
Saketh Kumar (29 days ago)
You totally left Ayurveda which is as old as 10000bc
Saketh Kumar (29 days ago)
Hello u left a lot bro withamnia somnifera acalypha indica phyllanthus amarus etc etc
Landon Rickets (1 month ago)
This channel has given me enough information to become the very best doctor in all of Europe, in like the year 1000 CE.
Landon Rickets (1 month ago)
This channel has given me enough information to become the very best doctor in all of Europe, in like the year 1000 CE.
Light Monolith (1 month ago)
Periwinkle is pretty cool. They grow everywhere where I live. Always thought they were really ugly though, hated em haha
Bryce Brown (1 month ago)
Watch this at 75% speed and its great
Dylan T (1 month ago)
I had a philosophy teacher we called professor weed.
Melody Scudmore (1 month ago)
Thanks hank,
jouneymanwizard (1 month ago)
6:30 - "Haven't you ever lost anything doctor Bronx? Your purse? Your car keys? Well, it's rather like that: Now you have it and now you don't." [Medicine Man] https://www.youtube.com/watch?v=ek8NmpVBssA
nicole delcourt (1 month ago)
Better if you talk faster...will make everyone 's blood pressure go higher!
Stevie Cormier (1 month ago)
You forgot to mention atropine being used in cardiac arrest and cardiac dysrhythmias
Sav Harris (1 month ago)
William (2 months ago)
It would probably appreciate being breathed on more
Not just another guy (2 months ago)
Yeah, plants are great. One advice: GO VEGAN.
agondeze phillip (2 months ago)
very interested in your nice lectures
FaithMidnight (2 months ago)
Don't forget mint which has been used for both settling an upset stomach and a cough suppressant
Anomaly88man (2 months ago)
I tried atropine eyedrops, and my it dialated my eyes for five days. It was horrible, because I had to read the old CRT screen, and write, and the atropine made it hard to read, I had to look at the papers and computer monitor from a further distance. The eyedrops actually made me far sided temporarily. I also tried the 3 mg scopolamine patches that were for nausea, and I didn't have nausea. I had to put the patch behind my ear , for 3 days it sad to. I just had really vivid dreams, and I felt a little weird for those 3 days while I was smoking marijuana with the patch back then! I quit smoking weed 2 years ago.
Who's Scott Green (2 months ago)
it's Red Forman just fyi
Marnino Mamorbor (2 months ago)
We have a periwinkle plant here on our garden, although I'm not sure if it's the right species.
Carol Jo Martin (3 months ago)
DUDE!!!! Cannabis has some great properties! I've had epilepsy for 60 years, with violent severe seizures that broke bones (most recently, my skull and jaw), caused gashes that required stitches, and countless concussions. That was just the physical effect. Mentally, it would take me anywhere from 4 days to 3 weeks to recover, but I was having seizures at a rate of 2 or 3 per week, so I was rarely recovered before the next one hit. Two and a half years ago a friend recommended medical cannabis, and I tried it. I chose edibles, because the effects last longer. In 2 1/2 years, I've had 2 seizures, both so mild that I was recovered literally within minutes. If I hadn't had witnesses to both of them, I would never have known I had them. But after 60 years of seizures, other things developed, and I had also inherited bipilar disorder from my father. I had spent 62 years in a state of deep, crippling depression. My mother said I was a depressed kindergartener. For the last 2 1/2 years it's not just relieved: it's 100% GONE! I was born with a malformed vertabrae in my lower back, and I've been on opioids for most of the last 40 years. When I started cannabis, I reduced my dosages of opioids by 2/3rds, and with the help of cannabis, I'm able to skip the opioids for 2 days every 2 weeks to ensure that I'm not addicted. 40 years, with no addiction! Of course, all those concussions have resulted in frequent, severe migraines. The medication I take for that used to last 1 month. Now it lasts 3. Being bipolar has it's anxiety and panic attack issues, as well as social anxiety. I've even gone to the emergency room thinking I was having a heart attack, when it was a panic attack. Meeting new people often triggered severe attacks. Now I look forward to getting out and meeting new people. AG Jeff Sessions is dead wrong about "good people don't smoke marijuana"; some really GREAT people do! And he's dead wrong about it not having any medical value; it's medicine that has given me back my life at the age of 62, and I can't help but wonder what my life would've been like if I'd been allowed to have it when the seizures started....
Lord Ruthless (3 months ago)
Happy birthday to you you you to
İlayda Potterhead (3 months ago)
I am watching this in case I go back in time, to be able to show off my 2018-medical knowledge and survive
Zin - ner (3 months ago)
O shet is that the plant (periwinkle) in my yard in Philippines, Lmao i used to just pluck the petals from it
Ruthy drawsalot (3 months ago)
Wait the rosy periwinkle grows here in the Caribbean. Man I didn't know that helps treat cancer
kayp kayp (3 months ago)
Ayurveda everyone knows
SKB Artistry (4 months ago)
People wonder why weed and the Willow tree wasn't mentioned, while I wonder why Chamomile (idk how to spell it) wasn't on the list.
1234bmt (4 months ago)
tex everett (4 months ago)
You can't say that something is new and improved because if it's new there was nothing before that. If it's improved that's because there was something before the newer version that could be improved upon. You can however say that something is a new, improved product, clearly saying that an existing product has been improved in some way making it better than the original.
carl gangl (4 months ago)
The killing of South American rain forests pains me killing the priceless for pennies.
Kimberly Cooper (4 months ago)
Diabetes type 2 is a disease of insulin resistance. To stop insulin resistance, you need to give your body a break from the hormone insulin. Insulin has two jobs: take blood sugar (fuel) out of the blood vessels and (1) put the fuel into the body's cells so that they can do their jobs (2) put excess fuel into the liver and the fat cells so that the excess fuel can be stored for when you have no food in your digestive system. When the digestive system has no food in it, blood sugar begins to decrease in the blood vessels. Then, the body's sensors sense the decrease and tell the pancreas to decrease insulin production and start producing the hormone glucagon. Glucagon's job is to take stored fuel out of the liver and the fat cells and put the fuel back into the blood vessels so that the body's cells can run on that fuel. Dr Jason Fung, MD, wrote the book "The Obesity Code", which explains about how insulin, glucagon, and other hormones effect diabetes type 2 and obesity.
Captain Raz (4 months ago)
Malaria killing half of all humans???? C'mon, thats a totally impossible math.
Jodi Henry (4 months ago)
Periwinkle Its in Jamaica
CaramelLeek (4 months ago)
My grandfather grows the rosy periwinkle in pots. I also got bottles upon bottles of seeds from him.
Existenceisillusion (4 months ago)
0:37 I thought beer _WAS_ medicine
Athul Gabriel K M (4 months ago)
I have Rosy Periwinkle in my garden
stampyhead 193 (4 months ago)
Who realized that youyou tu kinda sounds like YouTube? Or is it just me?
gOdZiLlA zumagod (5 months ago)
Breeding a CBD plant from a THC plant is a human intelligence demonstration.
Tu'Orb (5 months ago)
I wonder has star fruit an medical property ??
Tu'Orb (5 months ago)
Can we make a artificial plant seed not genetic modified (taken a seed and modified) i mean making a seed with chemical and something else ???
David Murphy (5 months ago)
we HAVE beaten malaria. MMT Sodium Chlorite is an oxidizer heals anything and malaria really quick
Rasip (5 months ago)
No love for willow bark?
Bluelights aquarium (5 months ago)
Metformin stimulates production of insulin from pancreatic beta cells
Bluelights aquarium (5 months ago)
Atropine offers no sedative properties. FYI
aaron faucett (5 months ago)
Early man was trying to get high! People weren't going around munching on random plants just because. Especially when you consider most alkaloids are bitter.
UncleCatfishDub (5 months ago)
linguistic question... why do so many end in -ine?
Rien Jen (5 months ago)
Metformin inhibits thiamine from being properly absorbed into the body, which can cause neurological symptoms in the long run. Without thiamine, your mitochondria (aka, the energy source of your cells) cannot properly utilize other nutrients and oxygen in your body.
Ya Boi (5 months ago)
I wish you did all the videos tbh
Jes Brown (5 months ago)
I love this channel but why is it that everyone talks so fast they should be a professional auctioneer?
ArticVikingChic (5 months ago)
Feverfew and ginseng are another two great plants to mention. Feverfew is good at regulating migraines and ginseng is shown to have some (tentative) abilities to fight radiation poisoning. I also can’t help but think that some herbs were more for nutrition support than as medicine, the nettle species don’t have any easily identified active component but have high amounts of calcium, iron, and magnesium along with other vitamins, so maybe herbs like it were really better for eating and prevention than actual medicine
Critter Cosner (5 months ago)
He showed Goldenseal at the end of the video but never mentioned it.
cilliqn (5 months ago)
professor weed
Narendra Chettiar (5 months ago)
Periwinkle is in abundance in india or may b its a similar looking plant let me know if you want a picture
Sk Verma (5 months ago)
Hey hey that rosey periwinkle grows commonly in India
Rahul Pavitrakar (5 months ago)
Am surprised you did not mention Ayurveda, a medical science from Ancient India mostly based on medicinal plant extracts....
tarjei99 (5 months ago)
Many soldiers used to carry an atropine syringe for use in case of a gas attack.
404 The Geek (5 months ago)
Bernie Dorosz (6 months ago)
Professor Weed? Funny, that's the same name as my dealer 🤣
Alvin Lee (6 months ago)
4 plants? That felt like 40. But, that was Hank. I could listen to 400.
MissPronounced (6 months ago)
While travelling through Zimbabwe and Botswana (both still active with malaria), my grandmother made us drink tonic water the entire trip, which she said repels mosquitos; I'm not sure about the validity of that statement now, but I did report having far fewer mosquito bites, and the product we drank had quinine in it, so now I know my grandma wasn't just crazy.
Teemu Seppänen (6 months ago)
where is Cannabis.....
Tamar H. (6 months ago)
re: the sweet wormwood story: I'm gonna link people to this video every time they imply that science is somehow "suppressing" "natural" medicine, rather than simply perfecting and standardizing it and tossing out the stuff that doesn't work.
Brenden Pischke (6 months ago)
"You, what's your name?" "You" "No, not me. You" "Yes, I am you." "Just answer the damn question." "I have told you"
Christopher Day (6 months ago)
Yes, but is there a Vindeisine?
Suhani Yadav (7 months ago)
My mother uses rosy periwinkle( Catharanthus roseus or vinca roseus) leaves for cancer treatment..it can be found growing anywhere itself..we call it as 'sadabahar'..
Suhani Yadav (7 months ago)
But is there something that the leaves of rosy periwinkle whose flowers are pink are much effective? What about it having white flowers? I have seen them also..Which one is more effective?
Aeon Maujean (7 months ago)
Yep, The Gin and Tonic was invented to treat malaria in British soldiers in India.
Christopher Ellis (7 months ago)
Illness, rather than diseases. TU You you, same as in Portuguese (2 yoyo)
Tsavorite Prince (7 months ago)
Guys, cannabis isn't as life saving and powerful as these plants. These plants save lives, weed only fills an emotional hole with the emotional equivalent of empty calories for those who are depressed. What the heck were you guys smoking when you made these comments.
MrTesla1231 (8 months ago)
Yall stupids thinking drugs'll be on here. Theres a different type of marijuana used as a drug, and it's different from the street drug, so shaddap, no onea wants to know about your stupidity by smoking it. OKAY?
Just Wondering (8 months ago)
Ignorant man and manipulative video. Herbs heal every ailment known to man. Medicine treats symptoms only.
kjell159 (8 months ago)
Not forgetting the power of the Cannabis genus with all its medicinal cannabinoids and terpenes. Or following a plant based diet (like a vegan one) that prevents cancer, prevents aging (prevents fast telomere damage), reverses heart disease, clogged arteries and atherosclerosis, ...
Dubey (8 months ago)
The last one "rosy periwinkle" I have many of those in my backyard they are called "sadabahar" here in India
Mini Draco (8 months ago)
I just clicked to see if weed is here
Dommy521 (8 months ago)
Mary Jane is the master plant
Michael Skinner (8 months ago)
Unfortunately, the pharmaceutical industry charges hundreds of Thousands of dollars Per Person for these:-p
L. Francesca (9 months ago)
Metformin gave me terrible side effects, but I'm glad it's helping lots of others manage their diabetes!
Anon Hate Mail (9 months ago)
*stares at periwinkles in yard* oH
Vince Bellisano (9 months ago)
Metformin is no longer being used.
Anon S. (9 months ago)
It wasn't all just luck, mysticism played a big part of it. So it was luck combined with hallucinations
Cd-iLozytp (9 months ago)
what about the pots that the kids these days talk about
GravitySloth (9 months ago)
*puffs joint* yeah plants have made me feel good once or twice
Kevork Manoukian (9 months ago)
Probably the goverment cut down the HIV trees, to hide them from public..you know, to keep the business rolling.
aKa Donut (10 months ago)
kill all vegetarians, they will consume those plants before you know it !!!
Home Wild (10 months ago)
maybe not a pat on the leaf, i think uv light would work better, its like a treat for plants
TheGanjPrincess GC (10 months ago)
Apart from Madagascar Periwinkle are widely found in India too!!
Saurabh Gharde (10 months ago)
which plant cure the gangrine disease
Renaissance Woman (10 months ago)
You are so incorrect about how they came to have the knowledge of medicinal plants.. they did not have the population to just go munching on random plants. The indigenous people say they were taught which plants to use from plant spirits. You dont have to believe it. But what you say is pure spectulation, this is coming from the mouths of the people who still live in symbiosis with the biosphere
Mukita12 (10 months ago)
best plant for Human GINGER!!!!
Psychonautic (10 months ago)
Interesting that he says we *probably* discovered most of these through blind luck, which I'm sure a lot of them we did and from watching animals eat certain things - but certainly cannot be the prevailing way. Based on mostly all (if not all) monistic, indigenous claims, is that it was *not* mostly by trial and error... Considering the profusion of botanical and fungi species out there, the combinations good or bad are prodigious... Ayahuasca from the Amazon alone, the chances of getting those two combinations just right is 1 in 8 billion chance (based on the calculations), which in the process would have killed off their whole families and tribes, had it just been by "trial and error", alone. Just saying... =)
Kratom is good for pain.
Hendrik (10 months ago)
You should have mentioned the bark of the willow tree!
babw16 (10 months ago)
Hank Greene is why I pat random leaves
g p (10 months ago)
you forgot marijuana
SSchithFoo (11 months ago)
I think its pronounced Kwinin not kwai-nein
Zach Mckowni (11 months ago)
I thought I heard a chuckle or two when he said professor weed
Benton Stacy (11 months ago)
Comments on this video: 85%: Something related to marijuana 60% of these are about Pfr. Weed 10% of these are about how marijuana shouldn't be in this vid 5%: Something about forgetting any other plant that has medical properties 3%: Some anus joke 2%: Some legitimate comment about SciShow 5%: Other

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