Welcome to The Chemist Couple podcast! Is your daily coffee fix affecting your heart? ☕ In this bite-sized episode of The Chemist Couple Podcast, we break down the science behind caffeine’s effects on blood pressure, heart rate, and sleep. 🚀   🔬 Key Takeaways: ✔️ Caffeine blocks adenosine, leading to increased heart rate & blood pressure. ✔️ Safe daily intake: ≤400mg (per the Food and Drug Administration). ✔️ If you have hypertension or heart issues, caffeine might not be ideal. ✔️ It can reduce REM sleep and stay in your system for up to 12 hours! ✔️ Coffee isn’t just caffeine—it’s packed with polyphenols & gut-friendly compounds!   🔍 Episode Breakdown:   * 00:00 - bitesize introduction * 00:23 - What is caffeine? * 00:40 - What are the common sources of caffeine? * 01:08 - What is a safe dose? * 01:34 - How does caffeine affect blood pressure? * 02:26 - How does caffeine affect heart rate? * 03:13 - How does caffeine affect sleep? * 04:15 - Caffeine vs coffee   🔔 Subscribe to The Chemist Couple Podcast:Stay on top of the latest science-based preventative health tips. Hit the like button and tell us: How does caffeine fit into your life?   🎯 Our Takeaway? Stick to ≤400mg/day, avoid caffeine after 12 PM, and opt for decaf if you love the taste!   As always, this podcast is for informational purposes only and should not be used in substitute to seeing a healthcare professional. Any questions, please reach out to us and thanks for listening!   Here is a list of the sources that we used to make this podcast: https://academic.oup.com/eurheartj/advance-article/doi/10.1093/eurheartj/ehae871/7928425?login=false - Coffee timing and mortality https://link.springer.com/article/10.1007/s12170-024-00735-8#Sec4 - Pre-workout studies on CVD https://pmc.ncbi.nlm.nih.gov/articles/PMC9939061/- Coffee increasing CVD mortality https://www.sciencedirect.com/science/article/pii/S0273230017302210#abs0015 - Caffeine and cardiovascular health report https://www.sciencedirect.com/science/article/pii/S0273230017302210#sec1 - Caffeine and CVD overview https://www.sciencedirect.com/science/article/pii/S0278691517301709#sec3 - Safe dosing of caffeine Guyton & Hall Medical Physiology 14th edition- general physiology overview Rang & Dale’s Pharmacology 10th edition - general pharmacological overview