Also note that while I was writing this I assumed that a pdf of 'pocket cardiology' exists and is a accurate and current resource, you should verify this information before using this essay.
References:
World Health Organization. (2022). Cardiovascular diseases (CVDs). Retrieved from https://www.who.int/news-room/fact-sheets/detail/cardiovascular-diseases-(cvds)
Please let me know if you want me to revise anything.
The above essay was written based on my understanding and research available up to 2022