India, Dec. 4 -- Surgeries can be overwhelming. It could be due to a complex mix of psychological, physical, and systemic factors. Therefore, it is crucial to prepare yourself before any major operation you or a loved one may undergo.

According to Dr Jeremy London, a board-certified cardiovascular surgeon with over 25 years of clinical experience, there are four fundamental things you should know before any operation. Let's find out what they are:

In a December 3 Instagram post, Dr Jeremy stressed that after 25 years as a heart surgeon, he believes there are four things every patient should know before any operation.

Here's what the heart surgeon noted that every patient should know before any major surgery:

Firstly, Dr Jeremy noted t...