An anonymous survey of 504 working women: founders, managers and employees. 3 in 4 had symptoms of insomnia, yet only about 4% reported a diagnosed sleep disorder. Founders worked the longest hours, but exhaustion, insomnia and low mood looked the same in every group: the job role does not protect.
Full results ↗Physician · Obesity care · Health communication
Kasia Wozniak, MD
A Polish physician who treats obesity, researches how doctors on social media change what patients know, and explains medicine to more than 500,000 people online.
Licensed physician in Poland · licence no. 3534736Polish Medical Chamber register ↗
251kfollowers on Instagram150ksubscribers on YouTube21Mviews on YouTube61knewsletter readers
Talks and research
A survey of more than 6,000 Polish women recruited on Instagram. Those who follow doctors on social media knew much more about GLP-1 treatment, yet only 11% of those with obesity were being treated, mostly because of the cost. As sources of health information, they rated doctors at 4 out of 5 and influencers at 2.
A literature review of obesity as a public health problem and of doctors as health educators online. About 65% of adults in Poland live with excess weight, while social media spreads misinformation: 71% of 218 TikTok videos about semaglutide did not mention risks. Doctors are seen as more credible than creators without medical training, so their education can improve what people know about obesity and its treatment.
How to qualify adults for obesity medicines under the 2024 guidelines of the Polish Society for the Treatment of Obesity: assessment beyond BMI (body composition, waist circumference, complications), medicines from BMI 30, or 27 with complications, after lifestyle measures, and treatment tailored and monitored over time. Original title: „Kiedy otyłość staje się problemem, czyli o klasyfikacji pacjentów do leczenia farmakologicznego”.
What Kasia speaks about
Keynotes, panels and workshops, in English or Polish. Each topic can be shaped for doctors, patients or the health industry.
- 01Obesity is a disease. Why so few people are treatedWhat patients know about GLP-1 medicines, what stops them from starting treatment, and what doctors can change.
- 02Doctors on social media: evidence that reaches millionsHow a physician builds an audience of half a million on Instagram, YouTube and TikTok without giving up on evidence, and what it does to patients’ knowledge.
- 03Medical misinformation: what actually works against itLessons from eight years of answering health questions online, from vaccines to weight-loss supplements.
- 04From a student blog to an online clinicFounding Zapytaj Lekarza, a telemedicine clinic, and running it as a doctor.
Bio
- 2017Starts the blog “Mama i stetoskop” and her YouTube channel
- 2018Graduates in medicine from the Medical University of Lublin
- 2020Founds Zapytaj Lekarza, an online clinic
- 2023Forbes Poland 30 Under 30
- 2023“Następny!” (“Next!”), short stories about doctors and patients
- 2025Golden OTIS Trust Award, Media and Health category
- 2025Abstract at the Progenesis conference in Lublin on qualifying patients for obesity medicines
- 2026Abstract at the 12th Lublin International Medical Congress on physician-led health education on social media
- 2026Abstract at the European Congress on Obesity (ECO 2026), Istanbul
Short bio · about 50 words
Kasia Wozniak, MD, is a Polish physician who treats obesity, a PhD candidate and the founder of Zapytaj Lekarza, an online clinic. Since 2017 she has explained medicine to the public as “Mama i stetoskop”, reaching more than 500,000 people on Instagram, YouTube and TikTok.
Long bio · about 150 words
Kasia Wozniak, MD, is a Polish physician who treats patients with obesity and a PhD candidate. She works at the Centre for Mental Health and Obesity Treatment of Zapytaj Lekarza in Lublin. She graduated from the Medical University of Lublin in 2018 and is a member of the Polish Society for the Treatment of Obesity.
She started the blog “Mama i stetoskop” as a medical student in 2017. Today she answers health questions for more than 500,000 people on Instagram, YouTube and TikTok, and in a weekly newsletter read by 61,000 subscribers, always on the basis of current evidence. Her latest research, presented at the European Congress on Obesity in Istanbul in 2026, looks at how following doctors on social media changes what patients know about obesity treatment.
In 2020 she founded Zapytaj Lekarza, an online clinic where she is the medical director. She was named in Forbes Poland’s 30 Under 30 (2023), received the Golden OTIS Trust Award in the Media and Health category (2025), and wrote “Następny!” (“Next!”, 2023), a collection of short stories about doctors and patients.
Press kit
Photos may be used to announce Kasia’s talks and in articles about her. Please credit “Kasia Wozniak”.
Invite Kasia to speak
Tell us about the event: date, place, audience and format. Kasia replies herself or with the help of her team.
Or write to wspolpraca@mamaistetoskop.pl