Olivia Walch
@oliviawalch.bsky.social
CEO of @arcascope.bsky.social, loves circadian rhythms and comics
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
August 18, 2025 at 6:58 PM
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
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/
July 1, 2025 at 12:39 PM
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/
April 22, 2025 at 2:04 PM
5. Avatars, baby: Make your digital twin look like you and watch as they get sleepier when your rhythm's off (I live for this)
March 27, 2025 at 4:58 PM
5. Avatars, baby: Make your digital twin look like you and watch as they get sleepier when your rhythm's off (I live for this)
4. For the real nerds: Actograms, DLMO time predictions, and graphical depictions of phase advance and delay regions
March 27, 2025 at 4:58 PM
4. For the real nerds: Actograms, DLMO time predictions, and graphical depictions of phase advance and delay regions
3. Sleep Insights: See how activities during the day (or in my case, lack of activities) might be affecting your sleep at night so you can proactively fix things tomorrow
March 27, 2025 at 4:58 PM
3. Sleep Insights: See how activities during the day (or in my case, lack of activities) might be affecting your sleep at night so you can proactively fix things tomorrow
2. Nap Planner: Find best times for a nap today based on your real-time data
March 27, 2025 at 4:58 PM
2. Nap Planner: Find best times for a nap today based on your real-time data
1. Track your circadian alignment as you adjust to a new wake-up goal (+ embrace early bird life)
March 27, 2025 at 4:58 PM
1. Track your circadian alignment as you adjust to a new wake-up goal (+ embrace early bird life)
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
January 30, 2025 at 3:51 PM
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
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-...
January 16, 2025 at 6:50 PM
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-...
"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
January 16, 2025 at 2:08 PM
"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
Today's a great day to check out Gonzalez-Aponte et al in the most recent issue of Cancer Cell, where they report that timing of dexamethasone can either accelerate or slow down glioblastoma growth, depending on when it's given: www.sciencedirect.com/science/arti...
x.com/oliviawalch/...
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January 13, 2025 at 3:52 PM
Today's a great day to check out Gonzalez-Aponte et al in the most recent issue of Cancer Cell, where they report that timing of dexamethasone can either accelerate or slow down glioblastoma growth, depending on when it's given: www.sciencedirect.com/science/arti...
x.com/oliviawalch/...
x.com/oliviawalch/...
Sleep is like a water cooler:
January 9, 2025 at 2:24 AM
Sleep is like a water cooler:
Sleeping is like walking
December 24, 2024 at 2:37 PM
Sleeping is like walking
working on a game to explain sleep
December 8, 2024 at 2:12 AM
working on a game to explain sleep
Simple illustration of how better sleep regularity could (theoretically) lead to higher circadian amplitude, from my recent research letter with Renske Lok academic.oup.com/sleep/advanc...
November 26, 2024 at 4:32 PM
Simple illustration of how better sleep regularity could (theoretically) lead to higher circadian amplitude, from my recent research letter with Renske Lok academic.oup.com/sleep/advanc...
Fan comic for some very cool work from Michele Wang and collaborators on the value of (re)introducing rhythms in kids getting nutrition through IV: jci.org/articles/vie...
November 22, 2024 at 1:11 PM
Fan comic for some very cool work from Michele Wang and collaborators on the value of (re)introducing rhythms in kids getting nutrition through IV: jci.org/articles/vie...
How I think about circadian entrainment (+sleep as a rhythm that can have or lack a groove)
November 21, 2024 at 5:09 PM
How I think about circadian entrainment (+sleep as a rhythm that can have or lack a groove)
Extremely cool insights into circadian medicine for glioblastoma from Maria Gonzalez-Aponte, Erik Herzog, and their collaborators: pubmed.ncbi.nlm.nih.gov/38277015/
November 20, 2024 at 2:44 PM
Extremely cool insights into circadian medicine for glioblastoma from Maria Gonzalez-Aponte, Erik Herzog, and their collaborators: pubmed.ncbi.nlm.nih.gov/38277015/
New research letter from Renske Lok, me, and collaborators on circadian amplitude (+ why we should think about it as a target for interventions)! Fits in nicely with the wave of cool amplitude-adjacent stories coming out of recent studies in large datasets academic.oup.com/sleep/advanc...
November 19, 2024 at 8:35 PM
New research letter from Renske Lok, me, and collaborators on circadian amplitude (+ why we should think about it as a target for interventions)! Fits in nicely with the wave of cool amplitude-adjacent stories coming out of recent studies in large datasets academic.oup.com/sleep/advanc...