When researching the testosterone video, I noticed a common theme: men often bought Viagra assuming it was exogenous Testosterone. In this video, Dr. Rohin Francis and I break down how erectile dysfunction works and what's up with Viagra's efficacy. Subscribe to Medlife Crisis: https://www.youtube.com/channel/UCgRBRE1DUP2w7HTH9j_L4OQ ☠️NONE OF THE INFORMATION IN THIS VIDEO SHOULD BE USED AS MEDICAL ADVICE OR OPINION. IT IS FOR GENERAL EDUCATION AND ENTERTAINMENT☠️ 🔗 L I N K S 🔗 📱Instagram: https://www.instagram.com/patkellyteaches/ 🐦Twitter: https://twitter.com/PatKellyTeaches 💰Patreon: https://www.patreon.com/corporis 📽 O T H E R V I D E O S 📽 ⚰️Medical History playlist:    • Playlist   🔬Anatomy Basics playlist:    • Basics of Anatomy   💪Kinesiology and Biomechanics playlist:    • 💪Musculoskeletal, Biomechanics, and K...   📜 S O U R C E S 📜 1. Physical Activity to Improve Erectile Dysfunction: a Systematic Review of Intervention Studies (2018) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5960035/ 2. Massachusetts Male Aging Study (1994) for American Statistic https://www.ncbi.nlm.nih.gov/pubmed/8254833 German ED Comparison, physiology of erections (2002) https://www.researchgate.net/publication/307638771_Gresser_Gleiter_PDE-5-Hemmer_EurJMedRes_2002?enrichId=rgreq-9bbaff00657b169893eff4e5dcb2c0ac-XXX&enrichSource=Y292ZXJQYWdlOzMwNzYzODc3MTtBUzo0MDMyMjEyMjM4ODY4NTBAMTQ3MzE0NjgzOTkxOA%3D%3D&el=1_x_2&_esc=publicationCoverPdf 3. 10% of impotent men seek treatment https://www.nytimes.com/1998/03/28/us/us-approves-sale-of-impotence-pill-huge-market-seen.html 4. 2017 Guardian article. Viagra use in the UK statistics https://www.theguardian.com/lifeandstyle/2017/aug/11/viagra-prescriptions-on-nhs-triple-in-10-years-as-stigma-fades 5. Paper presented on screen. JAMA (2005) https://jamanetwork.com/journals/jama/fullarticle/202047 6. Slidenafil Citrate Drugs.com https://www.drugs.com/monograph/sildenafil-citrate.html Overall cardiovascular profile of slidenafil citrate (1999) https://www.sciencedirect.com/science/article/pii/S0002914999000466 7. 64% of men… https://www.jwatch.org/jw198803220000002/1988/03/22/penile-brachial-pressure-index-noninvasive 8. Exercise prescriptions for ED treatment Heart https://heart.bmj.com/content/105/2/160?hwoasp=authn%3A1549644658%3A4073202%3A168117551%3A0%3A0%3AZ9rweBTxAeOhe9q0X1OV3w%3D%3D Further recommended reading: JAMA (2011) https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/10.1001/archinternmed.2011.440 EHJ https://academic.oup.com/eurheartj/article/34/27/2034/440049 💊A B O U T 💊 Hi, I’m Patrick. I’m a freelance science writer based in the San Francisco Bay Area. I hold a bachelor’s degree in Athletic Training and a master’s in clinical exercise physiology. I used to work in the clinical setting as a certified athletic trainer, physical therapy aide, and a certified strength and conditioning specialist. After working in the clinical setting, I went back to school and became a teacher. The goal of my content is to help normal people, not just pre-med students, learn about the human body. That might mean explaining a topic from an anatomy class or exploring a topic from medical history. 💻 C O N T A C T 💻 If you’d like to sponsor a video or have other business inquiries: patkellyteaches [at] gmail.com #corporis #anatomy #medicalhistory