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Catherine Clase

@catherineclase.bsky.social

Professor of medicine, kidney doc, epidemiologist, editor, mask researcher and advocate (airborne) @docshumanity.bsky.social Opinions my own https://www.doctorshumanity.org/petition https://maskevidence.org

4,668 Followers  |  1,508 Following  |  537 Posts  |  Joined: 13.11.2024
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Posts by Catherine Clase (@catherineclase.bsky.social)

An advertisement for an iftar Sat Mar 7: 4pm for Sudan and Gaza. Speakers are Dr Catherine Clase; Sheikh Adullah Idris; Dr Anas Alkassem. QR code for sign up is provided. The Canadian charity UOSSM is the organizer and fundraiser. The location is The Mannor London, 109 Falcon St London ON L5W4Z2.

An advertisement for an iftar Sat Mar 7: 4pm for Sudan and Gaza. Speakers are Dr Catherine Clase; Sheikh Adullah Idris; Dr Anas Alkassem. QR code for sign up is provided. The Canadian charity UOSSM is the organizer and fundraiser. The location is The Mannor London, 109 Falcon St London ON L5W4Z2.

Please consider attending this iftar, if you are in the London area. If you are not able to attend, please support UOSSM's work by donating here: www.uossm-canada.org

02.03.2026 20:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Condemnation of the Illegal and Unjust War on Iran by the United States Just Peace Advocates stated that such an action is both illegal and unjust, representing a serious threat to peace and stability in the region.

www.justpeaceadvocates.ca/statement-co...

01.03.2026 01:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Carbohydrate Ingestion on Exercise Metabolism and Physical Performance Abstract. Carbohydrate (CHO) ingestion during exercise has long been associated with improved performance. Early Scandinavian research proposed that CHO in

Carbohydrate Ingestion on Exercise Metabolism and Physical Performance. Read more in #EndocrineReviews: bit.ly/46QlgjZ #Carbohydrates #Metabolism #Glycogen @endocrinesociety.bsky.social

27.02.2026 22:33 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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πŸ€”β–ΆοΈ New #McMasterPerspective: Dr Anthony Sandre reviews contemporary use of #ASA:
πŸ’  When to use (or avoid) ASA
πŸ’  Evidence showing P2Y12 inhibitors may offer better outcomes with less bleeding

πŸ‘‰ mcmastertextbook.com/interviews/p...
#VTE #MedEd #MedicalEducation #FOAMEd

04.04.2025 14:35 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Cover of The Lancet:

@thelancet.com
www.thelancet.com/journals/lan...

27.02.2026 11:15 β€” πŸ‘ 8128    πŸ” 3437    πŸ’¬ 160    πŸ“Œ 221
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When bike lanes are not enough: The role of connected low-stress cycling infrastructure on cycle commuting in urban Aotearoa New Zealand Promoting bicycling is a shared aspiration among cities internationally in pursuit of sustainable urban development. However, while cities are increas…

STUDY: We found that while the majority of the roads in these cities are low stress, they are poorly connected, and the greater provision of low-stress cycling infrastructure is associated with more people cycling to work.”

No surprise, but evidence confirming the obvious is valuable. #UrbanTruth

27.02.2026 14:11 β€” πŸ‘ 50    πŸ” 14    πŸ’¬ 2    πŸ“Œ 0

You can become disabled or homeless at any time.

They aren’t moral failings.

You can’t β€œjust try harder”.

All it takes is one accident, one illness, one catastrophic event and your life changes forever.

It’s a minority group you can join at any time.

27.02.2026 09:23 β€” πŸ‘ 400    πŸ” 120    πŸ’¬ 7    πŸ“Œ 5
27.02.2026 16:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Separated Bike Lanes Means Safer Streets, Study Says β€” Streetsblog USA Cities that build protected lanes for cyclists end up with safer roads for people on bikesΒ and people in cars and on foot, a new studyΒ of 12 large metropolises revealed Wednesday.

Never forget, a 13-year study found that protected bike-lanes led to a drastic decline in fatalities for all road users.

ALL ROAD USERS.

What about painted bike-lanes? No safety improvement at all.

For sharrows, it’s actually safer to NOT have them.

Via @usa.streetsblog.org @nyc.streetsblog.org

27.02.2026 01:28 β€” πŸ‘ 574    πŸ” 181    πŸ’¬ 10    πŸ“Œ 8

I regularly see people wondering how it's possible that there are so many musicians and writers and film makers and artists from a tiny nation like Iceland.

And the answer is really simple: State funding for art education and artists. I literally get a salary from the government to write books.

18.02.2026 14:23 β€” πŸ‘ 20800    πŸ” 5575    πŸ’¬ 217    πŸ“Œ 377

They won't start with banning birth control. First they'll lie about it. Then dictate who can prescribe it, use it, fund it, in what forms, and for how long. Suddenly, your doctor won't call you back. I know this is what they'll do because it's what they're doing to transgender healthcare right now.

25.02.2026 16:24 β€” πŸ‘ 18309    πŸ” 6185    πŸ’¬ 196    πŸ“Œ 170
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Urgent: Nobel prize for Francesca Albanese They want her to resign - let’s not let that happen!

More than a million have signed. Add your name.

secure.avaaz.org/campaign/en/...

24.02.2026 22:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

"I remember the newspapers dying like huge moths."
-*Fahrenheit 451*

23.02.2026 00:10 β€” πŸ‘ 158    πŸ” 41    πŸ’¬ 1    πŸ“Œ 1

I’m about as far left as you can get… but we do have problems with MAiD in Canada.

How do I know? It was β€œoffered” to me in lieu of care.

I’m disabled, I was alone, my conditions expensive.

Yes I was allowed to say β€œNo”, but no alternative care was offered.

That’s coercion.

23.02.2026 03:38 β€” πŸ‘ 451    πŸ” 106    πŸ’¬ 9    πŸ“Œ 14
Street transformation from car space to street willed with people including kids

Street transformation from car space to street willed with people including kids

It’s not just about what you remove (cars, noise, dirty air). It’s about what you add (people walking, a lot of bike parking, trees, outdoor dining, and room for kids to play safely). Amsterdam: 1986 and today.

Streets for people.

HT @hackneycyclist.bsky.social for the great before-and-after

22.02.2026 05:46 β€” πŸ‘ 476    πŸ” 123    πŸ’¬ 7    πŸ“Œ 3
Busy arterial street filled with congested cars

Busy arterial street filled with congested cars

Bike-lanes don’t cause traffic congestion.

Car dependency, dumb land-use sprawl, too many (& bigger) cars being driven too much taking up too much space, highly subsidized driving costs, and not enough choices in how to get around, ALL cause traffic congestion.

Think about it. THAT’S common sense.

21.02.2026 07:40 β€” πŸ‘ 232    πŸ” 53    πŸ’¬ 4    πŸ“Œ 2

You probably know this, but I had to be taught, to wash the rice first in a different container, to save damage to the non stick surface of the pot

21.02.2026 22:10 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Zojirushi if you can. I had to be persuaded but it is better

21.02.2026 22:06 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

So sorry to hear you are sick. Source control from n95 is good for normal breathing, if he’s not coughing or sneezing, I would do this under the circumstances. Hugs and feel better soon.

17.02.2026 05:59 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Great graphic showing cities on a triangle graph showing if they are most oriented to public transit, active mobility or cars.

Great graphic showing cities on a triangle graph showing if they are most oriented to public transit, active mobility or cars.

Have you seen this? This recent study of mode share (the % share of transportation trips that are by car, transit, walking, biking etc) relative to city size and income levels in almost 800 cities in 61 countries. Interesting results. HT @davidzipper.bsky.social
www.sciencedirect.com/science/arti...

13.02.2026 05:23 β€” πŸ‘ 371    πŸ” 164    πŸ’¬ 16    πŸ“Œ 26
A portion of the StrΓΈget pedestrian street in Copenhagen that widens into a grand people-place.

A portion of the StrΓΈget pedestrian street in Copenhagen that widens into a grand people-place.

One of the most successful pedestrian streets in the world, the StrΓΈget in Copenhagen, was filled with cars until a 2 year pedestrianization pilot project in 1962. The opposition argued β€œno cars means no business,” but the street has been a massive retail success, the city’s busiest shopping street.

15.02.2026 06:05 β€” πŸ‘ 1022    πŸ” 262    πŸ’¬ 23    πŸ“Œ 21
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European states must retract outrageous attacks on Francesca Albanese They should publicly apologize and retract calls for her resignation

www.amnesty.org/en/latest/ne...

14.02.2026 06:57 β€” πŸ‘ 19    πŸ” 14    πŸ’¬ 2    πŸ“Œ 1

Proud to support @jennykwan.bsky.social’s bill to close loopholes that let Canadian weapons be funnelled through the U.S. without oversight. With ICE abuses and U.S. arms transfers violating human rights, Canada must not be complicit.
Call your MP.
Join the Feb 17 Day of Action: ArmsEmbargoNow.ca

08.02.2026 01:29 β€” πŸ‘ 41    πŸ” 19    πŸ’¬ 1    πŸ“Œ 1
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Worldwide Mask Bloc Directory – Find your local Mask Bloc MaskBloc.org lists active Mask Blocs around the world. Free high-quality masks, COVID-19 tests and other equipment for your community. Mutual Aid & We Keep Us Safe.

With a number of Olympic athletes donning respirators, this is your reminder that COVID is not over.

It’s airborne, and a well fitted mask is a great way to protect yourself and those around you.

If you can’t afford one, check out your local mask bloc.

If you can afford it, consider donating!

07.02.2026 05:23 β€” πŸ‘ 147    πŸ” 62    πŸ’¬ 0    πŸ“Œ 3
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The Data Queen: Meet the Israeli Ambassador of Wall Street's Fastest-Growing Company - Forbes Israel The tech data company Palantir is probably the hottest thing on Wall Street today - with some even marking it as the next Nvidia. But when its executives prepare their quarterly financial reports, the...

Palantir & Israel.

forbes.co.il/e/the-data-q...

05.02.2026 15:04 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Ditching bike helmets laws better for health With epidemics of diabetes and obesity threatening to bankrupt state health budgets, governments need to broaden their strategies to encourage physical activity. Allowing cyclists to ride without a he...

This is counter-intuitive:

"It is clear that the benefits of cycling outweigh the risks, with helmet legislation actually costing society more from lost health gains than saved from injury prevention." theconversation.com/ditching-bik...

05.02.2026 14:18 β€” πŸ‘ 82    πŸ” 23    πŸ’¬ 10    πŸ“Œ 8
Table titled, 'Characteristics of US Adults With Uncontrolled Blood Pressure in 2021-2023 (continued).' Includes data on diabetes, chronic kidney disease, CVD, 10-y cardiovascular risk β‰₯7.5%, high CVD risk, SBP, DBP and SBP or DBP. Published online February 2, 2026.

Table titled, 'Characteristics of US Adults With Uncontrolled Blood Pressure in 2021-2023 (continued).' Includes data on diabetes, chronic kidney disease, CVD, 10-y cardiovascular risk β‰₯7.5%, high CVD risk, SBP, DBP and SBP or DBP. Published online February 2, 2026.

Analysis of NHANES data from 2021 to 2023 found that 79.1% of US adults with hypertension had blood pressure above the 2025 AHA/ACC goal of <130/80 mm Hg.

ja.ma/4aanrQq

03.02.2026 12:00 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
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Immobilized IgG-containing immune complexes require platelets to recruit neutrophils during inflammation

03.02.2026 12:15 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Post–intensive care syndrome (PICS) refers to new or worsening physical, cognitive, or mental health impairments experienced by more than half of intensive care unit (#ICU) survivors. 🧡

02.02.2026 17:02 β€” πŸ‘ 16    πŸ” 6    πŸ’¬ 3    πŸ“Œ 0
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Here is today’s #eyeSCANdy! Corrugated lumen of a renal artery following removal of endothelial cells.Β 

Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

02.02.2026 17:03 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0