Louise Hidinger, PhD
@theingredientslist.bsky.social
Science communications + Sustainable design
Clean Indoor Air Toronto advocate
Ph.D. biological chemistry + AAS fashion design
Twitter/X @IngredientsbyL
#scicomm #cleanindoorair #cleanair
Clean Indoor Air Toronto advocate
Ph.D. biological chemistry + AAS fashion design
Twitter/X @IngredientsbyL
#scicomm #cleanindoorair #cleanair
Reposted by Louise Hidinger, PhD
“Right now, we’re in the thick of COVID-19. We know that COVID-19 is actively circulating in our province…it’s been increasing since late summer”
No kidding. It's gross NS Health didn't warn people sooner. And, hand-washing doesn't prevent airborne spread. Please wear a mask & get vaccinated.
No kidding. It's gross NS Health didn't warn people sooner. And, hand-washing doesn't prevent airborne spread. Please wear a mask & get vaccinated.
November 4, 2025 at 12:42 AM
“Right now, we’re in the thick of COVID-19. We know that COVID-19 is actively circulating in our province…it’s been increasing since late summer”
No kidding. It's gross NS Health didn't warn people sooner. And, hand-washing doesn't prevent airborne spread. Please wear a mask & get vaccinated.
No kidding. It's gross NS Health didn't warn people sooner. And, hand-washing doesn't prevent airborne spread. Please wear a mask & get vaccinated.
Reposted by Louise Hidinger, PhD
Reposted by Louise Hidinger, PhD
Once again imploring you, at least if you're going into crowds, to wear a well-fitting respirator. The airborne illnesses that are felling Blue Jays fans as I type are no joke. The air quality at Rogers Centre is shockingly bad. Airborne viruses can kill and disable even the "healthy".
November 1, 2025 at 9:05 PM
Once again imploring you, at least if you're going into crowds, to wear a well-fitting respirator. The airborne illnesses that are felling Blue Jays fans as I type are no joke. The air quality at Rogers Centre is shockingly bad. Airborne viruses can kill and disable even the "healthy".
Reposted by Louise Hidinger, PhD
I just want to make this *abundantly clear*.
When “experts” say COVID-19 is mild for kids…
THEY HAD, AND HAVE NO IDEA WHAT TEN YEARS WORTH OF INFECTIONS WILL CAUSE.
When “experts” say COVID-19 is mild for kids…
THEY HAD, AND HAVE NO IDEA WHAT TEN YEARS WORTH OF INFECTIONS WILL CAUSE.
October 28, 2025 at 10:20 AM
I just want to make this *abundantly clear*.
When “experts” say COVID-19 is mild for kids…
THEY HAD, AND HAVE NO IDEA WHAT TEN YEARS WORTH OF INFECTIONS WILL CAUSE.
When “experts” say COVID-19 is mild for kids…
THEY HAD, AND HAVE NO IDEA WHAT TEN YEARS WORTH OF INFECTIONS WILL CAUSE.
Faces of evil.
Three times in the past two weeks, editorials at the 'Washington Post' failed to disclose that they focused on matters in which owner Jeff Bezos had a material interest.
'Washington Post' editorials omit a key disclosure: Bezos' financial ties
Three times in the past two weeks, editorials at the 'Washington Post' failed to disclose that they focused on matters in which owner Jeff Bezos had a material interest.
n.pr
October 28, 2025 at 1:40 PM
Faces of evil.
Reposted by Louise Hidinger, PhD
Far too many Canadians think the federal government controls everything. All while ignoring the decades-long sabotage of 🇨🇦 by powerful provincial gov’ts that control healthcare, education, minimum wage, rent controls, infrastructure & so many other aspects of gov’t that impact daily life. #cdnpoli
October 27, 2025 at 7:48 PM
Far too many Canadians think the federal government controls everything. All while ignoring the decades-long sabotage of 🇨🇦 by powerful provincial gov’ts that control healthcare, education, minimum wage, rent controls, infrastructure & so many other aspects of gov’t that impact daily life. #cdnpoli
Reposted by Louise Hidinger, PhD
Not one government has told Israel to stop kidnapping their citizens in international waters and let them bring baby formula to starving babies. What a shameful time to be alive
Israel intercepts another Gaza aid flotilla amid criticism over treatment of activists
Israel intercepts another Gaza aid flotilla amid criticism over treatment of activists
Israeli foreign ministry confirms interception and says those on board will be deported
A new Gaza-bound aid flotilla has been intercepted by the Israeli army, days after the detention of activists on board vessels bound for the war-torn territory caused international outrage and widespread protests.
The Israeli military was jamming signals with at least two boats being boarded, the Freedom Flotilla Coalition said on Instagram. Continue reading...
www.theguardian.com
October 8, 2025 at 6:36 AM
Not one government has told Israel to stop kidnapping their citizens in international waters and let them bring baby formula to starving babies. What a shameful time to be alive
Reposted by Louise Hidinger, PhD
ME/CFS is a devastating condition that has long been denied, dismissed, psychologised and underdiagnosed. Research is at last starting to catch up with it, with glimmers of hope for those who have been left untreated for so long.
There's a huge BUT coming ...🧵
www.theguardian.com/society/2025...
There's a huge BUT coming ...🧵
www.theguardian.com/society/2025...
Scientists develop first ‘accurate blood test’ to detect chronic fatigue syndrome
Research could offer hope for ME patients – but some experts urge caution and say more studies needed
www.theguardian.com
October 8, 2025 at 6:09 AM
ME/CFS is a devastating condition that has long been denied, dismissed, psychologised and underdiagnosed. Research is at last starting to catch up with it, with glimmers of hope for those who have been left untreated for so long.
There's a huge BUT coming ...🧵
www.theguardian.com/society/2025...
There's a huge BUT coming ...🧵
www.theguardian.com/society/2025...
Reposted by Louise Hidinger, PhD
Here's the link to working paper mentioned above:
The Effect of Air Purifiers in Schools (June 11, 2025)
www.rff.org/publications...
The Effect of Air Purifiers in Schools (June 11, 2025)
www.rff.org/publications...
The Effect of Air Purifiers in Schools
The Effect of Air Purifiers in Schools
www.rff.org
October 3, 2025 at 8:54 PM
Here's the link to working paper mentioned above:
The Effect of Air Purifiers in Schools (June 11, 2025)
www.rff.org/publications...
The Effect of Air Purifiers in Schools (June 11, 2025)
www.rff.org/publications...
Reposted by Louise Hidinger, PhD
Air purifiers cut missed school days by 12.5%. 💪
October 2, 2025 at 3:10 PM
Air purifiers cut missed school days by 12.5%. 💪
Reposted by Louise Hidinger, PhD
New from Canadian Coalition for Green Health Care:
Displacement Ventilation: Rethinking Indoor Air for Health and Climate
Displacement Ventilation: Rethinking Indoor Air for Health and Climate
Displacement Ventilation: Rethinking Indoor Air for Health and Climate
YouTube video by Canadian Coalition for Green Health Care
youtu.be
September 26, 2025 at 12:08 AM
New from Canadian Coalition for Green Health Care:
Displacement Ventilation: Rethinking Indoor Air for Health and Climate
Displacement Ventilation: Rethinking Indoor Air for Health and Climate
Reposted by Louise Hidinger, PhD
This moment from our latest episode with science writer @edyong209.bsky.social is 🔥
We asked Ed — how do we talk up the benefits of science in the face of government cuts? He told us that's the wrong approach. 🧪
Listen wherever, or watch on Spotify 👇
open.spotify.com/episode/7Evh...
We asked Ed — how do we talk up the benefits of science in the face of government cuts? He told us that's the wrong approach. 🧪
Listen wherever, or watch on Spotify 👇
open.spotify.com/episode/7Evh...
October 1, 2025 at 2:56 PM
This moment from our latest episode with science writer @edyong209.bsky.social is 🔥
We asked Ed — how do we talk up the benefits of science in the face of government cuts? He told us that's the wrong approach. 🧪
Listen wherever, or watch on Spotify 👇
open.spotify.com/episode/7Evh...
We asked Ed — how do we talk up the benefits of science in the face of government cuts? He told us that's the wrong approach. 🧪
Listen wherever, or watch on Spotify 👇
open.spotify.com/episode/7Evh...
Reposted by Louise Hidinger, PhD
Do not succumb to gaslighting. If you are protecting yourself and others from C-19, you are being smart, compassionate, grounded in reality, and equity-supportive. If you’re not…
Let me be clear. As someone who has been professionally involved with the biodefense / biosecurity sector for nearly 20 years, and has worked on biological risk analysis for Covid-19 since early 2020, reducing one's risk of being infected is not health anxiety. It's just smart.
September 26, 2025 at 4:54 PM
Do not succumb to gaslighting. If you are protecting yourself and others from C-19, you are being smart, compassionate, grounded in reality, and equity-supportive. If you’re not…
Reposted by Louise Hidinger, PhD
New: The link between air pollution and aortic dissection/aneurysm, adds to genetic susceptibility
www.nature.com/articles/s44...
www.nature.com/articles/s44...
Association of air pollution exposure and genetic susceptibility with increased risk of thoracic aortic aneurysm and dissection - Nature Cardiovascular Research
Ma et al. demonstrate that air pollution is associated with an increased risk of thoracic aortic aneurysm and dissection (TAAD), and that genetic susceptibility to TAAD amplifies this risk through multiplicative and additive interactions.
www.nature.com
September 26, 2025 at 3:18 PM
New: The link between air pollution and aortic dissection/aneurysm, adds to genetic susceptibility
www.nature.com/articles/s44...
www.nature.com/articles/s44...
Reposted by Louise Hidinger, PhD
Yesterday, history happened at the UN: For the first time hundreds of orgs signed a global pledge declaring that healthy indoor air is a human right.
Healthy indoor air is a key tool for preventing pandemics, building climate resilience, and increasing health equity. We need it everywhere!
Healthy indoor air is a key tool for preventing pandemics, building climate resilience, and increasing health equity. We need it everywhere!
September 26, 2025 at 3:31 PM
Reposted by Louise Hidinger, PhD
You're sick.
You go to a clinic.
People are coughing, sneezing & blowing their noses.
...and no one is wearing a mask.
Time to bring masks back into healthcare facilities.
🎧 8 min listen
www.cbc.ca/listen/live-...
You go to a clinic.
People are coughing, sneezing & blowing their noses.
...and no one is wearing a mask.
Time to bring masks back into healthcare facilities.
🎧 8 min listen
www.cbc.ca/listen/live-...
September 24, 2025 at 12:39 PM
You're sick.
You go to a clinic.
People are coughing, sneezing & blowing their noses.
...and no one is wearing a mask.
Time to bring masks back into healthcare facilities.
🎧 8 min listen
www.cbc.ca/listen/live-...
You go to a clinic.
People are coughing, sneezing & blowing their noses.
...and no one is wearing a mask.
Time to bring masks back into healthcare facilities.
🎧 8 min listen
www.cbc.ca/listen/live-...
Reposted by Louise Hidinger, PhD
Fundamentally, the reason I avoid Covid is because all - all - of the elements of my life that bring me joy and fulfillment rest on my cardiovascular fitness and / or my cognition. I'm not going to risk a virus wrecking that, as I've seen happen to way too many people I know.
September 19, 2025 at 5:18 PM
Fundamentally, the reason I avoid Covid is because all - all - of the elements of my life that bring me joy and fulfillment rest on my cardiovascular fitness and / or my cognition. I'm not going to risk a virus wrecking that, as I've seen happen to way too many people I know.
FYI: I'll be at North York Central, Toronto Public Library
this Sat Sept 13, 2 pm, talking about adapting #skincare practices to suit changes in skin that commonly occur with age, especially as cooler weather approaches! To register: www.eventbrite.ca/e/no-filter-...
#antiageing #perimenopause
this Sat Sept 13, 2 pm, talking about adapting #skincare practices to suit changes in skin that commonly occur with age, especially as cooler weather approaches! To register: www.eventbrite.ca/e/no-filter-...
#antiageing #perimenopause
No Filter Required: Tips for great skin
This seminar covers common skin concerns including ageing, acne and hyperpigmentation, and the basics of how to identify effective products.
www.eventbrite.ca
September 9, 2025 at 5:55 PM
FYI: I'll be at North York Central, Toronto Public Library
this Sat Sept 13, 2 pm, talking about adapting #skincare practices to suit changes in skin that commonly occur with age, especially as cooler weather approaches! To register: www.eventbrite.ca/e/no-filter-...
#antiageing #perimenopause
this Sat Sept 13, 2 pm, talking about adapting #skincare practices to suit changes in skin that commonly occur with age, especially as cooler weather approaches! To register: www.eventbrite.ca/e/no-filter-...
#antiageing #perimenopause
Reposted by Louise Hidinger, PhD
In October, we published secret recordings of Project 2025 architect Russell Vought discussing plans to eviscerate entire agencies and decimate the morale of federal workers if Trump won a second term.
It's hard to imagine a more prescient piece of journalism.
It's hard to imagine a more prescient piece of journalism.
The October Story That Outlined Exactly What the Trump Administration Would Do to the Federal Bureaucracy
Historians have hindsight when they look into the past; journalists have the facts on the ground and context to help them look ahead. That means we can sometimes be surprised by how prescient a story…
www.propublica.org
August 17, 2025 at 5:01 PM
In October, we published secret recordings of Project 2025 architect Russell Vought discussing plans to eviscerate entire agencies and decimate the morale of federal workers if Trump won a second term.
It's hard to imagine a more prescient piece of journalism.
It's hard to imagine a more prescient piece of journalism.
Reposted by Louise Hidinger, PhD
www.thewhig.com/opinion/summ...
“Canadians have endured extreme heat and drought in many parts of the country. Farmers have witnessed reduced agricultural yields. And the temperatures of the Great Lakes and St. Lawrence River are comparable to bath water. None of this is normal.”
“Canadians have endured extreme heat and drought in many parts of the country. Farmers have witnessed reduced agricultural yields. And the temperatures of the Great Lakes and St. Lawrence River are comparable to bath water. None of this is normal.”
Summer of the climate emergency
Canada is on fire.
www.thewhig.com
August 17, 2025 at 5:20 PM
www.thewhig.com/opinion/summ...
“Canadians have endured extreme heat and drought in many parts of the country. Farmers have witnessed reduced agricultural yields. And the temperatures of the Great Lakes and St. Lawrence River are comparable to bath water. None of this is normal.”
“Canadians have endured extreme heat and drought in many parts of the country. Farmers have witnessed reduced agricultural yields. And the temperatures of the Great Lakes and St. Lawrence River are comparable to bath water. None of this is normal.”
Reposted by Louise Hidinger, PhD
The media has lost the plot. How bad does it have to get before they wake up? (answer: so bad, really bad, the worst).
How many euphemistic headlines and ledes have we seen like this:
"pushes the bounds" - vague suggestion of stretching limits of power
"a debate has emerged" - passive voice, unclear on who is objecting or the merits of those objections (suggests 50/50)
"pushes the bounds" - vague suggestion of stretching limits of power
"a debate has emerged" - passive voice, unclear on who is objecting or the merits of those objections (suggests 50/50)
As President Donald Trump pushes the bounds of military activity on domestic soil, a debate has emerged over a nearly 150-year old law that regulates when federal troops can intervene in state issues.
August 17, 2025 at 6:04 PM
The media has lost the plot. How bad does it have to get before they wake up? (answer: so bad, really bad, the worst).
Reposted by Louise Hidinger, PhD
#Ontario Canada's current #covid lab testing surveillance of those at higher risk (blue line) continues to show a lower level of activity compared to previous Omicron-era seasons (red and gold). That said, we are starting to see a slow build up in % test positivity as we approach Fall.
chart: PHO
chart: PHO
August 17, 2025 at 3:46 PM
Reposted by Louise Hidinger, PhD
August 15, 2025 at 6:32 PM
Reposted by Louise Hidinger, PhD
Gaza doctors ‘becoming too weak to treat patients’ as hunger crisis deepens
Gaza doctors ‘becoming too weak to treat patients’ as hunger crisis deepens
Malnourished medical staff say they are struggling to provide care to injured civilians, while recovery rates are also hit by
www.theguardian.com
July 23, 2025 at 10:24 AM
Gaza doctors ‘becoming too weak to treat patients’ as hunger crisis deepens
Reposted by Louise Hidinger, PhD
Let's take a look at the needs inside of a typical inner city #OntEd elementary school classroom with a 6.5 billion dollar per pupil funding gap in Ontario for the upcoming school year.
Let's do the math.
Let's do the math.
May 25, 2025 at 3:42 PM
Let's take a look at the needs inside of a typical inner city #OntEd elementary school classroom with a 6.5 billion dollar per pupil funding gap in Ontario for the upcoming school year.
Let's do the math.
Let's do the math.