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Olivia Walch

@oliviawalch.bsky.social
328 followers 267 following 67 posts

CEO of @arcascope.bsky.social, loves circadian rhythms and comics

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Reposted by Olivia Walch
thene @thene.bsky.social · 13/08/2026
out it goes: my long post about Rachel Hope Cleves's claim that Tillie Walden plagiarised her book. It's long because Cleves's claim is much, much more bizarre than it looked on first reading. I'm not going to bury the lede here. Cleves's claim does not hold up. buttondown.com/thene/archiv...
stick a pin in this metaphor

…because these covers are a microcosm of the entire conflict; Walden's book is mostly built on writing and other objects left by Sylvia Drake, Charity Bryant, and others. Her work includes many elements from these records that Cleves does not refer to in her book, and many of her interpretations of those records are different from Cleves's interpretations, often intentionally so. In addition to her historical basis, Walden's book includes fictional dialogue and story elements that are original to her work, some of which are inspired by Walden's own life.
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Olivia Walch @oliviawalch.bsky.social · 07/05/2026
Fan comic for a great new paper from Erik Musiek + collaborators on circadian gene expression in Alzheimer's models. tl;dr: *when* you collect your tissue changes the story you get. www.nature.com/articles/s41...
nature.com
A glial circadian gene expression atlas reveals cell-type and disease-specific reprogramming in response to amyloid pathology or aging - Nature Neuroscience
Sheehan et al. have characterized the circadian translatomes of astrocytes and microglia in the mouse cortex in the context of amyloid pathology or aging, revealing cell- and disease-specific reprogra...
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Walter Hickey @walthickey.bsky.social · 29/04/2026
shoutout @oliviawalch.bsky.social
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Reposted by Olivia Walch
JCI insight @insight.jci.org · 18/01/2026
Cancer watch: an actigraphy device @mariafelicita.bsky.social @erikherzog.bsky.social @oliviawalch.bsky.social & team establish a real-time, non-invasive monitoring tool for glioblastoma progression based on activity, enabling early progression detection: doi.org/10.1172/jci....
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Reposted by Olivia Walch
Erik Herzog @erikherzog.bsky.social · 21/11/2025
Dosing on the way down improves outcomes for glioblastoma. Thanks Maddy Frank for covering this collaboration with @oliviawalch.bsky.social and WashU grad student @mariafelicita.bsky.social. #chronotherapy #circadian #medicine source.washu.edu/2025/11/timi...
source.washu.edu
Timing may be key to effective cancer treatments
Researchers at Washington University in St. Louis find the timing of biopsy can affect how doctors diagnose tumors and when those cancers may be more sensitive to chemotherapy.
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Reposted by Olivia Walch
Parmvir K Bahia @parmvir.com · 29/10/2025
Me doing my best to regulate my body clock using that sweet sweet Florida sunshine! Thanks again @oliviawalch.bsky.social for the time and the chat for @smbmathbiology.bsky.social's podcast #BiologyInNumbers. It was super cool learning about your work @arcascope.bsky.social ⏰☀️💊 #scicomm
A view looking past a swimming pool surrounded by palm trees. In the background you can see the sun in a blue sky and the ocean.
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Olivia Walch @oliviawalch.bsky.social · 28/10/2025
Really enjoyed chatting with @parmvir.com on the Biology in Numbers podcast! Thanks for having me. open.spotify.com/episode/2oIC...
open.spotify.com
Spotify – Web Player
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Olivia Walch @oliviawalch.bsky.social · 28/10/2025
😍 looks amazing!
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Reposted by Olivia Walch
Save Standard Time @savestandard.bsky.social · 22/10/2025
Permanent Standard Time would let us sleep naturally past dawn. Daylight Saving Time makes us wake by alarm in darkness. Tell lawmakers to ditch DST! 🔗👇
Comparison photos of autumn mornings at 7:00 on Standard Time (sunlit skies) versus Daylight Saving Time (dark skies) from California (Pacific Time), Utah (Mountain Time), Missouri (Central Time), and Georgia (Eastern Time).
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Olivia Walch @oliviawalch.bsky.social · 23/10/2025
Very excited for this to come out! Awesome work by @mariafelicita.bsky.social
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Olivia Walch @oliviawalch.bsky.social · 25/09/2025
Very excited to speak about circadian digital twins at this workshop today and tomorrow! www.nhlbi.nih.gov/events/2025/...
nhlbi.nih.gov
Digital Twins in Heart, Lung, Blood, and Sleep Research Virtual Workshop
The Digital Twins in Heart, Lung, Blood, and Sleep Research Virtual Workshop will take place virtually on September 25–26, 2025.
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Reposted by Olivia Walch
Sangeeta Bhatia @snbhatia.bsky.social · 19/08/2025
Your liver can tell time! bsky.app/profile/oliv...
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Olivia Walch @oliviawalch.bsky.social · 18/08/2025
Science fan comic for cool work from Dr. Sandra March in the Bhatia lab at MIT/HHMI on building in vitro liver clocks to understand rhythms in infection and drug metabolism 💕https://www.science.org/doi/10.1126/sciadv.adm9281
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Olivia Walch @oliviawalch.bsky.social · 01/07/2025
Today! Download Arcashift to join our July-only circadian light + activity challenge to help Sol (cute lil sun mascot) get his groove back ☀️🌞☀️ arcascope.com/arcashift/
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Olivia Walch @oliviawalch.bsky.social · 06/06/2025
wowowow!
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Olivia Walch @oliviawalch.bsky.social · 16/05/2025
😍
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Reposted by Olivia Walch
Athenaeum Comic Art @athenaeumcomicart.bsky.social · 13/05/2025
Support indie and small press cartoonists through buying their art!
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Nilah "Nine Jobs" Magruder @nilahmagruder.com · 06/05/2025
Creaky Acres is out today! At last, you can now find it at your nearest indie bookstore or library. And if you can't, tell them you want it! @calistabrill.bsky.social #graphicnovels #comics #kidlit #kidlitart www.penguinrandomhouse.com/books/558467...
Full-color cover illustration for upcoming graphic novel Creaky Acres, by Calista Brill and Nilah Magruder. A 10-year-old Black girl wearing black helmet, black blazer, tan riding pants, and black boots sits astride a light brown horse. The girl is smiling at camera. The horse looks up at the girl fondly.
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Olivia Walch @oliviawalch.bsky.social · 05/05/2025
Had a ton of fun chatting with my friend Rosy on Science of Slink about SLEEP GROOVE + why sleep regularity is so important
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Reposted by Olivia Walch
Save Standard Time @savestandard.bsky.social · 28/04/2025
Paraguay recently adopted permanent Daylight Saving Time. Less than a year later, citizens demand permanent Standard Time, to restore morning sunlight.
MercoPress
Senator Wants Paraguay to Revert to Winter Time (GMT—4)
April 28, 2025

Paraguayan Senator Blanca Ovelar plans to introduce a bill to revert the country's time zone to GMT-4 year-round from the current permanent summer time (GMT-3) adopted recently.

Ovelar argues that the summer time is harmful, forcing students, teachers, and workers to start their day in darkness, which disrupts natural circadian rhythms.

She claims that winter time aligns better with Paraguay’s geographical meridian and aims to correct the “legislative mistake” of the law currently in force.

The proposal seeks to implement the change immediately after enactment. The issue has sparked debate, with some advocating for staggered schedules for public officials and students as an alternative solution.

Ovelar, of the ruling ANR Colorado Party, insisted the current shift was a legislative mistake.

The measure had negative consequences for the population, she further argued, claiming that many fellow…
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Society for Light, Rhythms, and Circadian Health @slrch-society.bsky.social · 22/04/2025
Next up in our Meet the Board series is SLRCH Vice President, Renske Lok @renskelokphd.bsky.social 🌟✨ Today is the LAST DAY to submit your abstract for SLRCH 2025 in Boston! We can't wait to see you there 🤩 slrch2025.exordo.com/login
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Olivia Walch @oliviawalch.bsky.social · 22/04/2025
moms 🤝 fridge www.theatlantic.com/family/archi...
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Randall Munroe @xkcd.com · 27/03/2025
Video of a student in my town who wrote a political op-ed being grabbed off the street by government agents bsky.app/profile/pale...
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Olivia Walch @oliviawalch.bsky.social · 02/04/2025
Digital twin is a term that means ten different things to ten different people. For our app, Arcashift, "sleep + circadian digital twin" means: - we have a system of differential equations that acts like your brain acts in response to light and other stimuli - and also a cute character builder
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Reposted by Olivia Walch
Arcascope, Inc. @arcascope.bsky.social · 27/03/2025
Cancer-related fatigue is tough—but it doesn’t have to be. A new study with @UMRogelCancer shows our personalized circadian rhythm app, Arcasync, can reduce daily fatigue in cancer patients. Published in Cell Reports Medicine: www.newswise.com/articles/per... #CircadianHealth #CancerCare
newswise.com
Personalized App Reduces Cancer-Related Fatigue | Newswise
U-M researchers, in collaboration with Arcascope, have developed and tested a personalized app that tracks a user’s circadian rhythm and makes behavioral recommendations to reduce daily fatigue.
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Olivia Walch @oliviawalch.bsky.social · 27/03/2025
So proud of the team at @arcascope.bsky.social for all the new stuff we've gotten into Arcashift, our circadian-rhythms-everything app. Here's 5 features you might not know about that are either out right now, or coming in the next release:
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Reposted by Olivia Walch
harp @haaarpb.bsky.social · 12/03/2025
ahhh its the last leg of my book tour!! city details in the replies
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Olivia Walch @oliviawalch.bsky.social · 10/03/2025
Northern Virginia folks: I'm doing a SLEEP GROOVE reading at GreenFare Cafe in Herndon this Wednesday, 3/12! Would love to see ya there www.eventbrite.com/e/sleep-groo...
eventbrite.com
Sleep Groove! Author lecture and book signing
Get in your sleep groove at our in-person event!
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Olivia Walch @oliviawalch.bsky.social · 11/02/2025
Ann Arbor friends: I'll be at Schuler Books at 6:30 pm tonight, talking about SLEEP GROOVE with Philip Cheng! Hope to see ya there: www.schulerbooks.com/event/sleep-...
schulerbooks.com
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Olivia Walch @oliviawalch.bsky.social · 07/02/2025
Can’t wait to admire @nilahmagruder.com’s work on this
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Olivia Walch @oliviawalch.bsky.social · 06/02/2025
This is happening tonight! So excited to talk circadian with Mike and everyone who makes it out to Anderson’s
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Olivia Walch @oliviawalch.bsky.social · 04/02/2025
Actually the only times you're allowed to throw off your sleep groove is when you're reading my book, science says this
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Olivia Walch @oliviawalch.bsky.social · 03/02/2025
Super glad for the chance to appear on WGN-TV this morning to talk about SLEEP GROOVE and the apps we're building at @arcascope.bsky.social 😎
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Olivia Walch @oliviawalch.bsky.social · 01/02/2025
❤️❤️🔥
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The Pulse @thepulse.whyy.org · 30/01/2025
Got zero sleep last night? Maybe you tossed and turned until morning came. Well, you're not alone, but there may be a way to ensure you get a good night's rest. Listen to our latest podcast extra where sleep researcher Olivia Walch talks about her new book, Sleep Groove. lnk.to/whyy-thepulse
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Olivia Walch @oliviawalch.bsky.social · 30/01/2025
Extremely cool to see so many people at the launch of SLEEP GROOVE earlier this week in Arlington! Chicago friends, hope to see you on 2/6 at Anderson's Bookshop ❤️https://www.eventcombo.com/e/Author-Event-with-Olivia-WalchSleep-Groove-73959
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Reposted by Olivia Walch
Matt Herdman @mattherdman.bsky.social · 29/01/2025
“Every good book needs a villain, and yours is…the concept of electricity and light” - @walthickey.bsky.social to @oliviawalch.bsky.social www.simonandschuster.com/books/Sleep-...
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Olivia Walch @oliviawalch.bsky.social · 28/01/2025
❤️❤️!!
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Olivia Walch @oliviawalch.bsky.social · 28/01/2025
SLEEP GROOVE, my love letter to circadian rhythms and sleep regularity, is out today! We need the rhythmicity of sleep to be just as central to how we define sleep health as the rhythmicity of your heartbeat is to defining cardiac health
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Carey Pietsch @careydraws.bsky.social · 27/01/2025
I WISH I could go see @oliviawalch.bsky.social talk about her new book with @walthickey.bsky.social but you definitely should if you're local!!
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Walter Hickey @walthickey.bsky.social · 27/01/2025
DC! Come to this!
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Olivia Walch @oliviawalch.bsky.social · 27/01/2025
Me and @walthickey.bsky.social will be talking SLEEP GROOVE tomorrow night in Arlington at One More Page Books; it will be fun: www.onemorepagebooks.com/event/celebr...
onemorepagebooks.com
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Olivia Walch @oliviawalch.bsky.social · 24/01/2025
Chicago! I’m going to be at Anderson’s Bookshop on 2/6 at 6:00 pm talking about SLEEP GROOVE with (the great) Dr. Mike Rust of UChicago: www.eventcombo.com/e/Author-Eve... Come if you can!
eventcombo.com
Author Event with Olivia Walch/Sleep Groove
Join Anderson’s Bookshop for an author event with Olivia Walch , to celebrate the release of her newest book, Sleep Groove: Why Your Body's Clock Is So...
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Reposted by Olivia Walch
Silver Sprocket @silversprocket.net · 23/01/2025
YOU CAN TRY AGAIN is back in stock, folks. You can buy again.
store.silversprocket.net
You Can Try Again by Olivia Walch
Sentimental sci-fi about clones, math, a gigantic fish, and ambition in a future where AI do mostly everything. This is the debut long-form from Olivia Walch. Read her comics on…
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Olivia Walch @oliviawalch.bsky.social · 23/01/2025
so grateful to Avi and @silversprocket.net for publishing YOU CAN TRY AGAIN the first time around, so excited to see it back in print
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Olivia Walch @oliviawalch.bsky.social · 22/01/2025
doing this in ten minutes!
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Olivia Walch @oliviawalch.bsky.social · 21/01/2025
I will draw bad comics for the people of reddit to explain sleep and circadian rhythms www.reddit.com/r/sleep/comm...
reddit.com
From the sleep community on Reddit: I'm a mathematician who studies sleep! AMA about sleep math and I'll draw a shitty comic to explain
Explore this post and more from the sleep community
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Olivia Walch @oliviawalch.bsky.social · 16/01/2025
Ann Arbor friends! I'll be doing an event to promote SLEEP GROOVE at Schuler Books on February 11 at 6:30 pm. If you're in the area, be sure to stop by: www.schulerbooks.com/event/sleep-...
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Olivia Walch @oliviawalch.bsky.social · 16/01/2025
balatro
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Olivia Walch @oliviawalch.bsky.social · 16/01/2025
"Sleeping is like pouring yourself a glass from a water cooler that's either tilting towards you (during biological night) or away from you (during biological day)" = two-process model in disguise
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