Zapping Nerves Into Regrowth | Celebrating the Maya Calendar In Guatemala’s Highlands
Science Friday24 Touko 2024

Zapping Nerves Into Regrowth | Celebrating the Maya Calendar In Guatemala’s Highlands

An early study found that electrical stimulation could improve hand and arm function in people with spinal cord injuries. Also, for thousands of years, Indigenous communities in Guatemala have used observations and mathematics to track astronomical events.

Zapping Nerves Into Regrowth

Results of an early trial published this week in the journal Nature Medicine found that people with cervical spinal cord damage showed some improvements both in strength and movement in arm and hand function after they received electrical stimulation near the site of their injury. The improved function persisted even after the stimulation stopped, indicating that the treatment may be inducing nerve cells to regrow in the damaged area.

Sophie Bushwick, senior news editor at New Scientist, joins Ira to talk about the work and what it could mean for people with severe spinal cord injuries. They also talk about other stories from the week in science, including creating the most powerful X-ray pulse ever reported, investigations into the microbiome of the scalp, and some epic cosplay—testing out the practicality of some ancient Greek armor in combat scenarios.

Celebrating the Maya Calendar In Guatemala’s Highlands

Every 260 days, Indigenous communities in the highlands of Guatemala celebrate a new cycle of the Maya calendar. This ceremony has persisted for thousands of years, from pre-Columbian times to today. The latest of these ceremonies happened in early May.

Joining Ira to talk about the importance of astronomical ceremony is Willy Barreno, a Maya calendar keeper based in Quetzaltenango, Guatemala, and Dr. Isabel Hawkins, astronomer and senior scientist at the Exploratorium in San Francisco, California.

Transcripts for each segment will be available after the show airs on sciencefriday.com.

Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374


Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Tämä jakso on lisätty Podme-palveluun avoimen RSS-syötteen kautta eikä se ole Podmen omaa tuotantoa. Siksi jakso saattaa sisältää mainontaa.

Jaksot(1383)

Making a case for physicists to join climate research

Making a case for physicists to join climate research

When you think of physics, your mind might go to forces—like gravity, friction, and magnetism—or to astrophysics, like galaxies and exoplanets. But many of the same principles used to understand how t...

20 Elo 12min

Creating 'world models' for robots + An AI math shakeup

Creating 'world models' for robots + An AI math shakeup

When you ask an LLM like ChatGPT or Claude a question, the model goes through its massive amount of training data and guesses the answer by mathematically predicting the word most likely to appear nex...

19 Elo 17min

What can moments of lucidity teach us about Alzheimer’s?

What can moments of lucidity teach us about Alzheimer’s?

Watching a loved one with Alzheimer's or dementia slowly lose their cognitive abilities can be heartbreaking. While the person you once knew seems to be slipping away, sometimes people with Alzheimer'...

18 Elo 17min

Colorado’s snow drought deals a major blow to recreation

Colorado’s snow drought deals a major blow to recreation

Winter in Colorado looked very different this year. Many parts of the state experienced record-high temperatures and record-low snowpack, which had downstream effects on farming, sports, tourism, and ...

17 Elo 11min

How do you find a ‘lost’ species?

How do you find a ‘lost’ species?

The earth is facing a biodiversity crisis, and there’s a lot of attention on species that are threatened, or at risk of dying out completely. But, there’s another critter category that’s a little more...

14 Elo 18min

What we get wrong about vaccine hesitancy

What we get wrong about vaccine hesitancy

President Trump has signed an executive order calling for a change to the childhood vaccination schedule. Specifically, he wants to separate the MMR vaccine, which protects against measles, mumps, and...

13 Elo 12min

Why this lab studies the speed of bug pee and other curiosities

Why this lab studies the speed of bug pee and other curiosities

In a lab in the Rocky Mountains, a group of scientists is hard at work trying to find answers across biology, physics, and engineering: They’re looking into things like the hydrodynamics of insect pee...

12 Elo 18min

Some primates undergo even more extreme childbirth than humans

Some primates undergo even more extreme childbirth than humans

Human childbirth is often difficult and incredibly painful—just ask anyone who’s been through it. And for a long time, childbirth seemed to be uniquely difficult for humans. But a new study suggests t...

11 Elo 11min

Suosittua kategoriassa Tiede

rss-poliisin-mieli
tiedekulma-podcast
rss-mita-tulisi-tietaa
utelias-mieli
rss-duodecim-lehti
rss-tiedetta-vai-tarinaa
rss-ammamafia
rss-astetta-parempi-elama-podcast
rss-tervetta-skeptisyytta
rss-kasvikutsut
rss-radplus
mielipaivakirja
rss-bios-podcast
rss-ranskaa-raakana
rss-luontopodi-samuel-glassar-tutkii-luonnon-ihmeita
rss-ylistys-elaimille