
Critically Speaking
On each episode of Critically Speaking, your host, Dr. Therese Markow, interviews foremost experts in a range of fields. We discuss, in everyday language that we all can understand, fundamental issues that impact our health, our society, and our planet. Join our weekly journey where we separate fact from fantasy for topics both current and controversial.
Latest episodes

Jul 16, 2024 • 25min
148 Dr. Thomas Guinn: Safe to Fly? Turbulence
A 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: Turbulence result from eddies in the atmosphere and can be light, moderate, severe, and extreme. 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. 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. Some studies seem to suggest that turbulence could be increasing with climate change. 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: guinnt@erau.edu LinkedIn: https://www.linkedin.com/in/thomas-guinn-37686439 Connect with Therese: Website: www.criticallyspeaking.net Threads: @critically_speaking Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Jul 9, 2024 • 21min
147 Dr. Mary Rysavy MD: Obesity in the Delivery Room
In this episode, Therese Markow and Dr. Mary Rysavy discuss all aspects of obesity during pregnancy. This is a significant concern that is growing. A study of 2000 deliveries in a single year highlighted the need for proper care and management of obese pregnant women to minimize risks and help ensure a healthy delivery. With 60% of women having a BMI over 30, and 16% having a BMI over 40, this is becoming a larger concern for both expectant mothers and for the hospitals and care providers. They also discuss the complications that mothers and babies can face during and after birth, how weight can impact those complications, and why it is so important for physicians to talk about obesity with their patients directly, but with compassion. Key Takeaways: Mothers with obesity are more likely to have to deliver by C-Section, have greater blood loss, and experience preeclampsia. The study found that obese mothers had worse complications during delivery. While fetal monitoring in obstetrics is a highly debated topic, we know it helps to prevent stillbirth. It is our best tool when we see when mom or baby are in trouble to help. Obesity is a medical condition. But it is also emotional and psychological and there are many components to it beyond only the medical side. Many feel shame about it even when there are aspects outside of their control. "The biggest, most important thing to do is to talk about it. As physicians, we have to be willing to bring this up so that patients understand that this is not a cosmetic issue that we’re concerned about. We just want them to be safe and healthy, and we want them to know what they can do to be as healthy as possible." — Dr. Mary Rysavy MD Episode References: Steffen HA, Swartz SR, Kenne KA, Wendt LH, Jackson JB, Rysavy MB. Increased Maternal BMI at Time of Delivery Associated with Poor Maternal and Neonatal Outcomes. Am J Perinatol. 2024 Mar 21. doi: 10.1055/a-2274-0463. Connect with Dr. Mary Rysavy MD: Professional Bio: https://med.uth.edu/obgyn/2022/10/28/mary-b-rysavy-md/ Email: Mary.B.Rysavy@uth.tmc.edu Connect with Therese: Website: www.criticallyspeaking.net Threads: @critically_speaking Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Jul 2, 2024 • 35min
146 Dr. Jerald Kay & Dr. Joel Yager: Ambition and Psychopathology
In this episode, Therese Markow, Dr. Jerald Kay, and Dr. Joel Yager discuss the various forms of ambition. They discuss lack of ambition, mismatched ambition, and delve into some of the potential negative consequences of Machiavellian ambition and how to deal with malignant narcissists. Key Takeaways: There are biological underpinnings to ambition, but much of what we know about ambition is built on repeated interactions as children. Not everyone who is Machiavellian is ambitious. Not everyone who is ambitious is Machiavellian. But when you have people who have dark triad characteristics it can mean trouble for those around them. There are levels of narcissism. Some are treatable. The last division of severe narcissistic personality is called malignant personality disorder and is relatively untreatable. "It’s both nature and nurture. We know ambition runs in families. And we know kids that are adopted into families with ambitious parents turn out to be more ambitious than if they weren’t adopted into those kinds of families." — Dr. Joel Yager Episode References: https://journals.lww.com/jonmd/fulltext/2023/04000/ambition_and_its_psychopathologies.1.aspx Connect with Jerald & Joel: Dr. Jerald Kay Professional Bio: https://people.wright.edu/jerald.kay Dr. Joel Yager Professional Bio: https://som.cuanschutz.edu/Profiles/Faculty/Profile/1789 Email Dr. Jerald Kay: jerald.kay@wright.edu Email Dr. Joel Yager: joel.yager@cuanschutz.edu Connect with Therese: Website: www.criticallyspeaking.net Threads: @critically_speaking Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Feb 2, 2022 • 37min
145 Fewer Sperm, More Infertility
Infertility is on the rise, leading otherwise healthy young couples to seek a form of assisted reproductive technology appropriate for their particular situation. This increase infertility of considerable concern. Is one sex affected more than the other? What are the long-range implications if the trend keeps going? Is it only humans that appear to be affected? And the critical question is why? In today’s episode, Therese Markow and Dr. Shanna Swan, author of the new book Count Down, answer many of these questions, including discussion of the types of chemicals and other factors that may contribute to the rising infertility. Key Takeaways: The number of “good” sperm observed in human populations (as indicated by the WHO) has dramatically decreased. Other characteristics for function, such as abnormal shape, inability to swim correctly, and chromosomal abnormalities are increasing as well. Male and female infertility is about 50/50. Newborn babies are being born “pre-polluted” with up to 100 environmental chemicals. One solution you can undertake yourself is to determine where your food comes from, as that’s what’s going into your body. "I'm convinced that a large proportion of the decline we're seeing is due to chemical exposures, man-made chemicals." — Dr. Shanna Swan Connect with Dr. Shanna Swan: Professional Bio: mountsinai.org/profiles/shanna-h-swan Website: shannaswan.com Book: Count Down - shannaswan.com/countdown LinkedIn: linkedin.com/in/shanna-swan-phd-339a4258 Instagram: instagram.com/drshannaswan Twitter: twitter.com/DrShannaSwan Reference: Environmental Working Group: ewg.org Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Jan 26, 2022 • 40min
144 Our Failing Education System
Dr. Richard P. Phelps is founder of the Nonpartisan Education Group, editor of Nonpartisan Education Review (http://nonpartisaneducation.org), a Fulbright Scholar, and fellow of the Psychophysics Laboratory. He has authored, or edited and co-authored Correcting Fallacies about Educational and Psychological Testing (APA); Standardized Testing Primer (Peter Lang); Defending Standardized Testing (Psychology Press); Kill the Messenger (Transaction), and several statistical compendia. Phelps has worked with several test development organizations, including ACT, AIR, ETS, the OECD, Pearson, and Westat. He holds degrees from Washington, Indiana, and Harvard Universities, and a PhD in Public Policy from the University of Pennsylvania’s Wharton School. In this episode, Therese Markow and Dr. Richard Phelps discuss the education system in the United States, especially in comparison with Western Europe and other industrialized societies. They look at how Common Core, No Child Left Behind, and the changes to the SAT test have affected the curriculum, learning, and student preparedness both for further education as well as life after school. These trends in educational standards and standardized tests continue to impede our students compared to those of the industrialized world. Students from all levels and backgrounds are affected by these programs and the changes that need to be made are discussed. Key Takeaways: The U.S. is falling behind other countries, even those with less spending on education. Common Core and No Child Left Behind have caused progress to be lost in elementary and secondary education standards. The SAT has become less of an aptitude test and more of an achievement test, and can discriminate against talented students from underrepresented groups that attended lower quality high schools. "Most information is not on the world wide web, much of what is there is wrong, and search rankings are easily manipulated by money and interests." — Dr. Richard Phelps Connect with Dr. Richard Phelps: Twitter: https://twitter.com/RichardPPhelps Website: https://richardphelps.net/ &https://nonpartisaneducation.org/ Research Gate: https://www.researchgate.net/profile/Richard_Phelps SSRN Scholarly Papers: https://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=1592150 Academia: https://204.academia.edu/RichardPhelps LinkedIn: https://www.linkedin.com/in/richardpphelps/ LinkedIn Learning: https://www.slideshare.net/search/slideshow?searchfrom=header&q=Richard+P+Phelps Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticiallyspeaking.net

Jan 19, 2022 • 33min
143 The mental health crisis: dreams and nightmares
In this culture where dreams and nightmares are such a part of our everyday language, the question becomes, what is dreaming? We all dream, so what does it mean, and how does it impact other areas of our lives, such as our mental health? In this episode, Therese Markow and Dr. Michael Nadorff discuss these questions, as well as diving deeper into the different cycles of sleep, the changes in our dreams and sleep as we age, different types of nightmare therapies, and the relationship between nightmares and suicide. Key Takeaways: All dreams, good and bad, occur during the REM cycles of our sleep. The amount of REM sleep increases as the night goes on and, consequently, dreams get longer too. Sleep loves the cold. If you fall asleep in too warm of an environment, during REM sleep when your temperature drops, you are more likely to wake up feeling overheated. Having nightmares significantly increased the likelihood of future suicide attempts in those who had previously attempted suicide. "REM is so important to us that, if you are sleep deprived, your body actually prioritizes REM, and it makes it even that much more intensive." — Dr. Michael Nadorff Connect with Dr. Michael Nadorff: Professional Bio: psychology.msstate.edu/people/michael-r-nadorff/ Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Jan 12, 2022 • 10min
142 Cold and Colder
Various forms of cold therapy, from ice on wounds to cold showers, have been successfully used for ages. And ice baths help athletes after an event. But these temperatures don't fall below freezing, or 32°F, and are usually above this. Recently, tanks providing whole body cryotherapy have been promoted for a wide range of health problems, some serious and progressive. This involves subjecting the body to anywhere from minus 160°F to 250°F, for several minutes. While this extreme exposure, even if for only a minute or so, definitely causes physical reactions, there have been no clinical trials to demonstrate their efficacy for the medical conditions supposedly helped. Furthermore, the tanks are not FDA approved. Key Takeaways: Whole body cryotherapy is being promoted for a wide range of medical conditions. The WBC tanks are not FDA approved medical devices. The facilities offering WBC rarely have any medical personnel present during the treatments. No standard clinical trials have been conducted demonstrating their efficacy, as claimed, for the medical conditions mentioned. People considering using the treatment should consult their physicians, rather than the internet, as to the benefits, prior to spending the money to expose themselves to these extremes. "Don't get all your information from celebrity testimony or social media promotions. Things that pass for research on the internet are not what serious investigators would define as quality research." — Therese Markow, Ph.D. Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Jan 5, 2022 • 20min
141 Breast Cancer Risks: Underarm Products
Breast cancer is on the rise, especially in women under 40. This is pretty scary and the increase points to something environmental. In today’s episode, Therese Markow and Dr. Kris McGrath talk about one of these environmental factors and how our individual underarm hygiene may play a role in our risk for breast (and prostate) cancers earlier in life. Dr. McGrath has had a long time interest in this trend and they discuss some of his work on the relationship between underarm shaving and the use of deodorants and antiperspirants. Key Takeaways: The majority of breast cancer is environmental or lifestyle. Only 5-10% of breast cancer is due to genetic causes. So what are the factors? Both breast cancer and prostate cancer are hormone-driven cancers. More research needs to be done, but there already is a significant and scary relationship between underarm hygiene and beast and prostate cancers. "In my paper, I showed that the earlier you began underarm habits, shaving your underarm and applying antiperspirant deodorant three times a week or more, the diagnosis of breast cancer began at a younger age, especially if you started using these products before the age of 16." — Dr. Kris McGrath Connect with Dr. Kris McGrath: Professional Bio: feinberg.northwestern.edu/faculty-profiles/az/profile.html?xid=15819 Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Dec 29, 2021 • 21min
140 Dr. Cheryl Rosenfeld: The Placenta and the Fetal Brain
What's the placenta? Some people think of it as a bag filled with fluid that protects the fetus inside from accidental blows, or a structure that sends maternal nutrients to the fetus while removing its waste products. Well, it's actually much more than this. When we may think that the placenta is protective, it can also create detrimental effects to the fetus - effects that can be lifelong. In fact, the placenta is a complex organ on its own and we've only recently been discovering some of the things that the placenta really does, and also what it can't do. Every new person that has arrived on this planet developed in a placenta, so to ensure the health and wellbeing of future generations, understanding what goes on with the placenta has become more critical. Today's guest is a leader in the field of placental biology. Dr. Cheryl Rosenfeld is professor of biomedical sciences and her cutting edge research on the multiple roles of the placenta and fetal development provides critical guidance for prenatal maternal lifestyle and care. Key Takeaways: The placenta does have some ability to metabolize things, and it does offer some buffering capacity to the fetus. The placenta is an endocrine organ. It also produces neurotransmitters. Endocrine disrupters can be found in household items and everything around us. Understanding the green chemistry movement can help us lead a healthy life style. "Even though we can't really, completely, eliminate our exposure to environmental chemicals. We can try to offset it by living with good healthy practices." — Dr. Cheryl Rosenfeld Connect with Dr. Cheryl Rosenfeld: Professional Bio: https://biomed.missouri.edu/cheryl-s-rosenfeld-phd-dvm/ The United States Developmental Origins of Health and Disease Society: https://www.usdohad.org/ Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.

Dec 22, 2021 • 32min
139 Dr. Jon Lieff: Consequences of Head Injuries
Just about everybody has bumped their head at least once in their life. A number of these bumps on the head, especially those resulting from more obvious head injury, are more serious than most of us imagine. What is a concussion? When should head trauma receive more attention? Given the recent reports about long term effects of head injuries in athletes, and the risks of head traumas for sports and accidents, let's learn a little bit more. After all, each of us has a head. Today's guest neuro psychiatrist, Dr. Jon Lieff, has been treating head injuries for decades, he even founded several programs for treating patients with head injuries. And interestingly, he's also the author of a book called, The Secret Language of Cells, a fascinating and very accessible description of how the cells in our body talk to each other in health and in illness. Key Takeaways: Here is no exact definition of a concussion - we do not have the imaging devices accurate enough to see the tiny breaks in neurons and axons and it is based on the symptoms as a judgment call by the doctor. Studying brain injury is still individual and still difficult. Some people are more resilient to head injuries over others. For example, young women and girls are particularly vulnerable for head injuries. "Younger kids should avoid hitting their head. They’re more sensitive to it. They’re not going to notice it as much, and there is very good information that multiple hits are far worse than one or the occasional." — Dr. Jon Lieff Connect with Dr. Jon Lieff: Professional Bio: https://jonlieffmd.com/about Twitter: https://twitter.com/jonlieffmd Website: https://jonlieffmd.com/ Book: https://jonlieffmd.com/book/the-secret-language-of-cells LinkedIn: https://www.linkedin.com/in/jonlieffmd/ Additional Resources: https://jonlieffmd.com/resources Connect with Therese: Website: www.criticallyspeaking.net Twitter: @CritiSpeak Email: theresemarkow@criticallyspeaking.net Audio production by Turnkey Podcast Productions. You're the expert. Your podcast will prove it.
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