Population Health Exchange
Free Associations
Free Associations is about using a critical eye when reading journal articles or news coverage about research breakthroughs. With a sense of humor and a healthy dose of skepticism Boston University School of Public Health Professors Matt Fox, Chris Gill, and Jennifer Rider talk us through popular health studies and hyperbolic news headlines while teaching us how to ask the right questions. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Author
Population Health Exchange
Category
Podcast website
Latest episode
Oct 30, 2025
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Episodes
Episode 81 - A treatment to prevent influenza? 08.09.2020 52:29
Matt, Chris, and Jess discuss a study that looks at using an influenza treatment for prevention in exposed contacts, they debate whether we should be using lotteries to decide who gets scarce coronavirus treatments, and Matt shows he really does read the reference section. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 80 - The pro vs anti probiotics showdown 25.08.2020 1:01:45
Matt, Chris, and Jess examine a study that looks at the effectiveness of probiotics in those in care homes, they discuss cognitive biases in relation to decisions about COVID policies, and Jess wows us with her first Amazing and Amusing. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 79 - Gun ownership and suicide in California 11.08.2020 57:17
Don, Chris, and Matt examine a study that looks at the impact of gun ownership and risk of suicide in California, they discuss whether we should be doing trials of coronavirus policies, and Matt proves he doesn’t know a thing about hens. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 78 - Could vaccines for other infectious diseases help with COVID? 28.07.2020 57:52
Don and Chris are back with Matt to go over a study that looks at the impact on survival in those who got tuberculosis and smallpox vaccination in Denmark, they discuss whether it is ethical to expose people to coronavirus in vaccine trials, and Chris gets snotty. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 77 - Does one pregnancy complication predict another? 14.07.2020 59:32
Matt welcomes guests Nedghie Adrien and Julie Petersen to discuss a study that looks at whether having a complication in a first pregnancy predicts having one in a second, they debate whether anyone should make clinical decisions based on non-significant trial results, and Nedghie updates us on the latest in toilet technology. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 76 - Did Netflix’s 13 Reasons Why lead to suicides? 30.06.2020 52:23
Matt welcomes guests Lisa Bodnar and Jaimie Gradus to discuss a study that looks at the impact of the Netflix series 13 Reasons Why on suicides, they discuss whether epidemiologists should be called “Doctor”, and Lisa finally uses the word ‘twizpipe’ correctly. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 75 - A new treatment for adolescent obesity? 16.06.2020 52:38
Matt, Jen, and guest Hailey Banack from The University of Buffalo discuss a study that looks at the effect of a new drug to treat adolescent obesity, they discuss the rise of armchair epidemiologists, and Jen reminds us of a past public health success. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 74 - Which is worse, social media or eating potatoes? 02.06.2020 50:31
Matt, Jen, and guest Kerry Keyes from Columbia University discuss a study that looks at the effect of digital media on health of adolescents, they debate whether COVID research is moving too fast, and Kerry warns us about taking medical advice from cartoons. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 73 - Is fish oil all that useful? 19.05.2020 54:19
Matt, Jen, and guest Laura Sampson discuss a study that looks at the effect of fish oil on cardiovascular disease, they get into the weeds on the proportional hazards assumption (no hate mail please), and Matt sits down to do some coloring. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 72 - Is it worth the risk to bike to work? 05.05.2020 57:16
Matt, Jen, and guest Laura Sampson examine a study that looks at the risk of accidents from cycling to work, they discuss an impressive response to a mistake in a research study, and Laura gives us the skinny on doctors’ coffee consumption habits. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 71 - Are C-sections increasing BMI in kids? 21.04.2020 1:00:50
Matt, Jen, and guest Jennifer Weuve discuss a study that looks at whether elective and non-elective C-sections are leading to increased BMI in kids, they discuss a blog that asks whether bad statistical practices are crowding out good ones, and Matt breaks out his dance moves. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 70 - Can kids with chicken pox protect you from shingles? 07.04.2020 59:01
Matt, Jen, and guest host Jennifer Weuve discuss a study that looks at whether exposure to kids with chicken pox protects adults from shingles, they ask whether blinding in randomized trials really matters, and Jen survives a podcast episode that feels like a year on Mars. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 69 - An informal chat about COVID-19 24.03.2020 41:30
The gang paused their usual format this week to discuss how they are all dealing with the changes that have come about due to COVID-19. We got Chris, Matt, Don, Jen and newcomer Laura (and even a guest appearance by Nick) all on Zoom. We’ll be back to our regular format in two weeks. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 68 - Long-term follow up on a new prevention for breast cancer 10.03.2020 49:59
Matt and Jen discuss a long-term follow up study of a drug to prevent breast cancer, they ask whether papers in predatory journals get cited, and Matt lets it all out watching guilty pleasure movies on planes. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 67 - What is hotspotting healthcare and does it work? 25.02.2020 53:16
Matt and Jen discuss a study on the hotspotting of healthcare, they raise a toast to the error detectors, and Jen instructs us on surviving encounters with wildlife. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 66 - Social determinants of homicides in the US 11.02.2020 1:03:26
Matt, Chris, and Jen examine a study on the social determinants of homicides, they discuss whether Mendelian randomization will save epidemiology, and Matt goes for the old BMJ Christmas edition. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 65 - Does quality of care affect maternal and neonatal outcomes? 28.01.2020 57:31
Matt, Chris, and Jen discuss a study modeling the impact of improvements in quality of care, they discuss a poorly thought through letter from a group of publishers to the president, and Jen teaches us about worm memories. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 64 - What's new for treating Ebola? 14.01.2020 54:18
Matt, Chris, and Jen examine a study on new treatments for Ebola, they discuss whether retracted papers should still be cited, and Chris and Jen have the same Amazing and Amusing. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 63 - Can my Apple Watch detect atrial fibrillation? 31.12.2019 1:01:09
Matt, Chris, and Jen discuss a study on whether Apple Watches can detect atrial fibrillation, they discuss a proposal to limit researchers to one published paper per year, and Matt wants to clown around. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 62 - Does the time you take your blood pressure meds matter? 17.12.2019 53:50
Matt, Chris, and Jen discuss a study on whether taking blood pressure medication at night is better than taking it during the day, they discuss the harms that come from hyping medical research (and what we can do about it), and Matt finally has an amazing and amusing that goes in the amazing direction. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 61 - Professional soccer and neurodegenerative disease 03.12.2019 50:29
Matt, Chris, and Jen discuss a study on whether playing professional soccer increases the risk of death from neurodegenerative disease, they vent about how much it costs in time and money to reformat papers for journal submission, and Jen gives Chris and Matt an early Christmas present. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 60 - Low dose radiation and cancer 19.11.2019 57:44
Matt and Jen examine a study from South Korea on the effects of low dose radiation on cancer, we discuss a fascinating study that was retracted and republished because of a coding error, and Matt shares Star Wars secrets gleaned from a figure in a research paper. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 59 - Red meat for the public health crowd 05.11.2019 1:00:24
Matt and Jen discuss a new set of surprising recommendations around eating red meat, we skip the second segment entirely because we had so much to say on segment 1, and Jen reveals who has been killing all the cane toads. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 58 - California’s Extreme Risk Protection Law 22.10.2019 1:01:28
Matt, Chris, and Jen discuss a case series on California’s Extreme Risk Protection Law, the gang discuss why it’s so difficult to talk about science on controversial topics, and Chris gets serious about classical music. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
Episode 57 - Sugary drinks and cancer 08.10.2019 59:10
Matt, Chris, and Jen discuss a study on the relationship between sugary drinks and cancer, the gang discuss how to improve nutritional epidemiology, and Jen gets us all up to speed about avocados. Music: "Duress" by Ketsa under CC BY-NC-ND 4.0 .
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