Construct and Destruct - Time bomb is ticking!

I was a science student. While other schools had options to choose between biology and mathematics, in my school it was a compulsion to take both. To think of the fact that I had to take biology used to give me nightmares. I never wanted to pursue medicine and I never wanted to be associated with it even remotely. Now, a decade later, I am hooked to TV serials related to medical drama (read House MD, Grey’s Anatomy etc) so much that I start thinking that I can be a doctor who can solve the puzzles of human body, one of the most complex systems ever created, at will! How much I think that I missed out in going ahead to learn the most versatile (???) and intricate systems ever made.

There are two facets of the human systems which fascinates me: The construct part and the destruct part.

Construct part: Huge volumes of cells and molecules interacting with each other to keep the multiple systems, working within the framework human body, in order. Complexity was probably the result of the way we started as different structures and functions and finally were designed to the kind of structure we have today.. It’s quite intriguing to think about what and how we are made of, probably every other system in the world will just fall as a subset to it. Just think about it, it’s a little berserk and freaky - I am writing this because I am thinking, typing, expressing something - all because I have a brain. It controls by thought process, it lets me write, feel, express. Imagine what makes the brain work and how it sends signals to other parts of the body to make them work in turn,is another mind boggling subject. I may not be the best guy to explain about the operations of human body (basics of which everyone is aware of), but I hope you are getting my point here.

Destruct part:
Some recent incidents which I would like to point out:

1.32 year old male (my roommate’s colleague) faints in his office and before he was taken to the hospital he passed away because of cardiac arrest!
2.43 year old hale and healthy male (my dad's very good friend) was suffering from high fever continuously for few days. He was tested positive for malaria. After few days I heard he passed away due to multiple organ failure!!

May be we are probably more complex than we need to be and highly inefficient. Many molecular processes involve indirect signaling and unnecessary cascades, we have vestigial bones and organs, our energy is mostly wasted as heat, etc. One small break in the link can destroy the system. A little niggle here and there can cause a catastrophic damage to the entire system. Sure, medical science has evolved to an extent that it can delay the inevitable but definitely not to make humans immortal. Eventually the system is bound to break, the lifetime of which is very much finite. It is like a time bomb and has to explode one day.

Well, whatever I have written is a no brainer, but the fact that I am writing this using my brain which is ordering the other requisite parts to perform what needs to be done to write this post is what which baffles me, puzzles me and probably keeps me going!! Think about it and pay a little attention and I am sure you all will find this quite interesting (?), insane, crazy – you can have your own adjective!