Dr. Cheryl Hawkes: Maternal Obesity Harms Fetal Brain Development
Critically Speaking
In this episode, Therese Markow and Dr. Cheryl Hawkes discuss the increasing scientific evidence that maternal obesity affects the developing fetal brain. While many of the effects manifest early, in infant temperament and childhood cognitive (IQ) decrements, other effects do not show up until years later, in adult psychiatric and neurodegenerative problems. The physical bases for these changes in fetal brains are also clearly evidenced in laboratory model systems, such as mice, where the maternal diets can be controlled, and the offspring not only can be given behavioral tests,...
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Dr. Diane Tober: Egg Donation Can Exploit Donors
Critically Speaking
In this episode, Therese Markow and Dr. Diane Tober discuss the global egg donation industry, highlighting its lack of regulations and exploitative nature. Dr. Tober details some of her research on egg donors, revealing severe risks and some life-threatening complications that can affect 10-12% of donors. They discuss how donors are often uninformed about the risks and the pressures faced by donors to donate beyond current guidelines. With compensation varying wildly, there are often financial pressures that donors face, too. Finally, Dr. Tober advocates for standardized informed consent,...
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Kim Mutcherson: Millions of Frozen Embryos!
Critically Speaking
In this episode, Therese Markow and Kim Mutcherson discuss the legal and ethical implications of the increasing number of frozen embryos and the complications of assisted reproductive technologies. With an estimated over 1 million frozen embryos in the United States, this is a complex topic, particularly around state laws, embryo disposition, the financial costs of IVF, and the potential increased regulation and legal challenges moving forward. Key Takeaways: There is no hard data on how many embryos are currently frozen around the world, but there are estimated to be...
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Dr. Chris Beyrer: Cuts to USAID Harm the Health and Prosperity of US Citizens
Critically Speaking
The opinions expressed by Dr. Beyrer are his own and not those of his employer. In this episode, Therese Markow and Dr. Chris Beyrer discuss the importance of USAID, highlighting its role in global health and development, particularly through programs like PEPFAR, which has saved 25 million lives and prevented millions of HIV infections. Dr. Beyrer emphasizes that the economic and security benefits of USAID, whose support amounts to less than 1% of the total US federal budget, have had important benefits at home in the United States. It protects us from infectious diseases like Ebola and...
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Dr. Adam Berinsky: Political Rumors and Misinformation
Critically Speaking
In this episode, Therese Markow and Dr. Adam Berinsky discuss political rumors and misinformation. Dr. Berinsky defines rumors as unsubstantiated claims without evidence, emphasizing their social transmission. He identifies two factors influencing rumor belief: conspiratorial thinking and partisan polarization. Berinsky's research reveals that while some people firmly believe rumors, others are ambivalent and more open to correction. He suggests focusing on these undecided individuals rather than entrenched believers. Berinsky also highlights the role of political leaders in spreading...
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Near Death Experiences
Critically Speaking
In this episode, Therese Markow and Dr. James Alcock discuss what near-death experiences are and the increase in them in recent years due to improvements in medical technology. While near-death experiences (NDEs) have been known about for a long time, we, as a scientific community, are starting to understand more about what they mean for neurological processes. However, despite knowing the science of what is happening, NDEs and how they are experienced are subject to one’s own beliefs, context, and even religious framework. Dr. Alcock and Therese also discuss the relationship between...
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Dr. Deborah Lang: What is Skin Cancer?
Critically Speaking
In this episode, Therese Markow and Dr. Deborah Lang discuss the rise of skin cancer, particularly melanoma, and its causes. Dr. Lang explains that skin cancers are derived from different skin cells: basal cell carcinoma and squamous cell carcinoma, both linked to UV exposure, and melanoma, which can be UV-independent and linked to genetic susceptibility. Dr. Lang emphasizes the importance of early detection and personalized medicine, noting that melanoma can metastasize early. She also highlights the role of genetic mutations in cancer development and the impact of funding cuts on cancer...
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Dr. Anice Lowen: Bird Flu - Should We Worry?
Critically Speaking
In this episode, Therese Markow and Dr. Anice Lowen discuss the bird flu outbreak, highlighting the virus’s spread from birds to dairy cattle and recorded cases of human infection. Dr. Lowen explains the differences between influenza A and influenza B viruses, talks about which type causes pandemics, and what we can do to try to prevent future pandemics from these flu strains. Key Takeaways: An epidemic affects a specific region, a pandemic is global. Only Influenza A viruses can cause pandemics and are often transmitted via birds and mammals. Humans can become...
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Dr. Joshua Weitz: Asymptomatic COVID-19 Spreaders
Critically Speaking
In this episode, Therese Markow and Dr. Joshua Weitz discuss his book "Asymptomatic: The Silent Spread of COVID-19 and the Future of Pandemics" and his work in understanding the risk of COVID spread from as early as spring of 2020. He highlights the double-edged sword of asymptomatic infections, discusses what governments could do to help mitigate at-risk populations, and what we, as individuals, can do to help keep everyone safe. Dr. Weitz criticizes early predictions of COVID-19's disappearance by mid-2020, attributing the error to underestimated infections and behavioral changes. He...
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Dr. Ajit Nirmal: Arms Race Against Cancer
Critically Speaking
When we hear the term tumor or cancer, the image that often comes to mind is a bunch of bad cells next to normal ones, and growing. Like many things, it's just not that simple. How do the normal cells turn bad? Can our immune systems detect the cancer cell and kill it? Why does some initially successful chemotherapy stop working? Why does cancer spread? These are all great questions, since cancers of one kind or another will affect so many of us either as patients, friends, or loved ones. Well, basic science is providing some critical answers. In today’s episode, Therese Markow and Dr. Ajit...
info_outlineA serious type of turbulence has been encountered during commercial airline flights has been in the news lately. “Pancake turbulence”. Hard to detect in advance. Most recently, an Air Europa flight from Madrid to Uruguay was hit by “strong turbulence” and had to make an emergency landing in Brazil, In another recent event. a flight bound from London to Singapore with 211 passengers and 18 crew members encountered turbulence that resulted in the death of a passenger, and the hospitalization and critical care of about 20 more with spinal injuries. What's this type of turbulence all about? How concerned should we be about flying? Dr. Thomas Gwynn, head of the Department of Applied Aviation Sciences at the distinguished Embry-Riddle Aeronautical University, explains about this type of turbulence and how turbulence may be increasing with global warming.
Key Takeaways:
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Turbulence result from eddies in the atmosphere and can be light, moderate, severe, and extreme.
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Chop turbulence is usually more moderate and rhythmic, similar to driving a car over a rumble strip. It can be annoying but isn’t usually dangerous.
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While onboard radar can help determine storms enabling pilots to avoid them, pancake turbulence, such as what affected these recent flights, cannot be detected by instruments. Pilots can only learn of these from other pilots.
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Some studies seem to suggest that turbulence could be increasing with climate change.
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No form of travel is without some level of risk, but flying is still, statistically, the safest mode of travel.
"The smaller the aircraft, the more vulnerable it's going to be to turbulence. For commercial airliners, generally, they have roughly the same vulnerability. So what really determines the vulnerability is something called the wing loading. The least vulnerable aircraft is going to be heavy aircraft with smaller wing sizes like your large jets. The greater weight makes it harder for the airflow to disrupt or move the aircraft." — Dr. Thomas Guinn
Connect with Dr. Thomas Guinn:
Professional Bio: https://faculty.erau.edu/Thomas.Guinn
Email: [email protected]
LinkedIn: https://www.linkedin.com/in/thomas-guinn-37686439
Connect with Therese:
Website: www.criticallyspeaking.net
Threads: @critically_speaking
Email: [email protected]
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