Heart Disease | Health | Biology | FuseSchool Let’s start with coronary heart disease or CHD in short. It’s when fatty deposits build up in your coronary arteries (aka very important arteries!), making them narrower and therefore reducing blood flow to the heart muscle. This is bad news. Less blood flow means less oxygen to the heart’s muscles, so less aerobic respiration. This means that the poor heart has to work extra hard to get energy! High blood pressure puts extra pressure on the arteries walls, making them even more susceptible to narrowing. This happens because if your blood pressure is too high, the muscles in the artery need to respond by pushing back harder and so they become more muscular and so there is less space for blood to flow through. Combined with coronary heart disease, this can lead to heart attacks, or worse, death. Well, there are a number of factors, including age, smoking, diet and physical activity. The older you are and the more you smoke, the higher the chances. Diet and physical activity also have a big effect on blood pressure, as well as cholesterol, and weight – all of which are risk factors of coronary heart disease. […] If someone’s heart is seriously damaged, they’ll need a new one. This is known as a transplant. This is done by removing their heart, and connecting the new one to the aorta and the pulmonary artery. Can you spot the potential problem in this process? Pause the video and have a think. Whilst surgery is going on, the patient won’t have a heart! This is solved by connecting the patient to a heart-lung bypass machine, which takes over the job of the heart and lungs. So there we have heart disease, the treatments and their risks. Coronary heart disease & high blood pressure CREDITS Animation & Design: Bing Rijper Narration: Dale Bennet Script: Gemma Young SUPPORT US ON PATREON https://www.patreon.com/fuseschool SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0 Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu Instagram: https://www.instagram.com/fuseschool/ Facebook: https://www.facebook.com/fuseschool/ Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Befriend us: http://www.facebook.com/fuseschool This is an Open Educational Resource. If you would like to use the video, please contact us: [email protected]