PPE Concrete, Steroid Use and ADHD, Butterfly Chastity

Curiosity Weekly

Warner Bros. Discovery

Science

4.6 • 963 Ratings

🗓️ 30 September 2022

⏱️ 11 minutes

🔗️ Recording | iTunes | RSS

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Summary

Today we discuss how recycling used personal protective equipment can make stronger concrete, a rise in ADHD symptoms among male weightlifters who take steroids, and the battle of the sexes among male and female butterflies!

PPE Concrete

“PPE can be recycled to make stronger concrete” by Gosia Kaszubska and Will Wright
- https://www.rmit.edu.au/news/all-news/2022/august/ppe-concrete
“Recycled PPE could strengthen concrete” by The Engineer
- https://www.theengineer.co.uk/content/news/recycled-ppe-could-strengthen-concrete

Steroid Use and ADHD

“ADHD symptoms and use of anabolic androgenic steroids among male weightlifters” by Emilie Kildal, Bjørnar Hassel & Astrid Bjørnebekk
- https://www.nature.com/articles/s41598-022-12977-w#:~:text=AAS%20use%20among%20weightlifters%20is,drug%20prevention%20strategies%20in%20sports.
“ADHD symptoms are more prevalent in male weightlifters who use steroids, study finds” by Patricia Y. Sanchez
- https://www.psypost.org/2022/08/adhd-symptoms-are-more-prevalent-in-male-weightlifters-who-use-steroids-study-finds-63795

Butterfly Chastity

“In butterfly battle of sexes, males deploy ‘chastity belts’ but females fight back” by Halle Marchese and Natalie van Hoose
- https://www.floridamuseum.ufl.edu/science/male-butterflies-deploy-chastity-belts/
“Is Sexual Conflict a Driver of Speciation? A Case Study With a Tribe of Brush-footed Butterflies” by Ana Paula S Carvalho, Ryan A St Laurent, Emmanuel F A Toussaint, Caroline Storer, Kelly M Dexter, Kwaku Aduse-Poku, and Akito Y Kawahara
- https://academic.oup.com/sysbio/article/70/3/413/5901062?login=false
“Ruff Sex: A Chastity Belt for Dogs” by Buck Wolf
- https://web.archive.org/web/20110410200915/http://www.aolnews.com/2010/02/08/ruff-sex-a-chastity-belt-for-dogs/

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Transcript

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0:00.0	Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Discovery.
0:09.0	Time flies when you're learning super cool stuff. I'm Nate.
0:12.0	And I'm Callie. If you're dropping in for the
0:14.0	first time welcome to curiosity where we aimed blow your mind by helping you to grow
0:17.7	your mind. If you're a loyal listener, welcome back. Today we're going to learn
0:21.4	about how recycling used personal protective equipment can make concrete stronger,
0:26.0	a rise in ADHD symptoms among male weightlifters who take steroids,
0:30.0	and the battle of the sexes among male and female butterflies.
0:34.0	Without further ado, let's satisfy some curiosity.
0:37.0	Callie, do you ever think about how much personal protective equipment we've used in our fight against COVID-19?
0:43.4	Oh boy, it's been a few years now, so it's got to be just an unbelievable amount, right?
0:48.4	Since the beginning of the pandemic, we have created more than 54,000 tons of personal protective equipment or PPE
0:56.3	around the world. Even now we use a hundred twenty nine billion disposable
1:00.7	face masks a month worldwide and that has some researchers pretty worried
1:05.4	about waste. Okay well what are we supposed to do with it all? Most of the stuff is
1:09.4	disposable by design right for doctors and surgeons to always have clean equipment?
1:13.4	Yeah, it definitely is, but that doesn't mean it just disappears after we use it.
1:17.5	That's why researchers at our MIT University in Australia
1:21.2	started looking for other things to do with disposed
1:24.0	PPE. What they found was that disposable PPE can be added to concrete and it
1:29.0	actually makes the concrete stronger and more durable.
1:32.0	Okay, two benefits for the price of one.
	...

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