GCSE Biology - Cardiovascular Disease & Treatments (2026/27 exams)

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** WHAT'S COVERED **
1. Introduction to Cardiovascular Disease (CVD)
Definition as diseases of the heart and blood vessels.
Examples including coronary heart disease, heart attacks, faulty valves, and heart failure.
2. Coronary Heart Disease (CHD)
Explanation of how coronary arteries get blocked by fatty material.
Consequence of reduced blood flow and oxygen to the heart muscle.
3. Treatments for CHD
Stents: How they hold arteries open, their benefits (quick surgery, long-lasting) and drawbacks (surgical risks, thrombosis).
Statins: How they alter cholesterol balance (LDL vs HDL), their benefits (lowering disease risk) and drawbacks (regular intake, side effects).
4. Faulty Heart Valves
Causes of damage or weakening (age, heart attacks, infections).
How faulty valves affect blood flow (not opening/closing properly).
Treatment options: Biological vs. mechanical replacement valves, surgical requirements, and risks.
5. Heart Failure
Definition: When the heart cannot pump blood effectively.
Overview of treatments including medication and heart transplants.
6. Heart Transplants
Use of biological (donor) hearts vs. artificial hearts.
Challenges: Donor availability, immune system rejection, limitations of artificial hearts.
Mention of heart-lung transplants.

** CHAPTERS **
0:00 What is Cardiovascular Disease?
0:41 Coronary Heart Disease
1:08 Treatments for Coronary Heart Disease
2:48 Faulty Heart Valves
3:23 Treating Faulty Valves
3:47 Heart Failure
3:59 Heart Transplants (Biological & Artificial)

** PLAYLISTS **
   • GCSE Maths (9-1)  

   • GCSE Biology (9-1)  

   • GCSE Chemistry (9-1)  

   • GCSE Physics (9-1)  

   • A-Level Biology  

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