Showing posts with label Conditions and Diseases. Show all posts
Showing posts with label Conditions and Diseases. Show all posts

Tuesday, August 11, 2009

Our real enemy

Lessons from Swine Flu, and SARS and HIV/AIDS and TB and Ebola and ...

Isn't it time we all realize that we should stop killing each other and instead focus our resources on wiping out the true enemies of mankind - the harmful bacteria and viruses?

It is time we declare war on these critters.
It also makes business sense. After all, how long will mankind support the war machinery by creating imaginary enemies?

This threat is present and real and deadly.
Let us eliminate this threat first. We can resume fighting each other later.

Independence Day, the movie, has a soul stirring speech by the President of US. He ends it with saying, "We will not go quietly into the night! We will not vanish without a fight! We're going to live on! We're going to survive!"

So, who is listening?

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Thursday, January 15, 2009

Are We Programmed To Die?

mourning angel
I read this delightful little book called Survival Of The Sickest by Dr. Sharon Moalem a few weeks ago (I have blogged on survival ... here and here.)

I fall back on this book yet again to continue with my latest obsession with death (here and here).

Ok! Question time ...

Why would you do something really stupid that will result in death in the long run?
Why do people resort to excessive drinking or substance abuse when they know that this will result in a painful death later?

Answer: Perhaps, to forget the pain of the moment.

This is hardly a trade off. You give up your future for the present. Really stupid right?

Surprise! Surprise! Turns out that your body does this all the time or rather evolution does this all the time.

We are diabetic because evolution chose diabetes over painful instant death if our blood were to freeze in cold weather - the sugar in the blood reduces the freezing temperature. (You really need to read the book if you want to understand this!)

Coming back to the original question.

The cells in our body are programmed to divide and grow only about 50-60 times. After that kaput! The cell dies. If the cell had no limit to reproduce we would not age nor die. Why would evolution choose such an end?

The answer: to prevent cancer.

What is cancer?

It is an uncontrolled growth of cells.

If the cell had no limit of reproduction, cancer would spread at the slightest pretext, as there would be nothing to prevent it from doing so (there are other inbuilt prevention mechanism but a limit to endless growth is the final defence against cancer.)

So yes we are programmed to die but it is for our own good. What a weird concept!

Note: The picture used belongs to Joachim Bär (See gallery)

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