Human life span is excruciatingly short; less than a blink of an eye in terms of geological age. Even from evolutionary perspective, this seems a waste of nature's efforts. Age, education, experiences, learning, environment makes a human mind to scale the boundaries of the universe. The human mind makes a body unique as Plato, Aristotle, Archimedes, Leonardo Di, Bach, Ghalib, Nietzsche, Tesla, Newton or Einstein. When the mind is still evolving, the body starts to wither away, affecting the brain's cognitive functions and it gets hunted down by its own body.

May be when in the next phase of human evolution, humans and machines would merge to form cyborgs, the human consciousness may be able to live forever. Imagine what if the most brilliant minds of the last 2,000 years be alive and contributing towards the advancement of human race. Imagine when death would be only of the body and our consciousness could become downloadable and eternal.

In the proverbial three score and ten life span, a man hardly gets 40-50 years of active, productive life. It seems such a loss of efficiency that even quarter a century of that is lost while sleeping! Just compare this efficiency against any other man made machine. At the end of the day, out of the 70 years of an average life, 1/3 is lost to the slumber, 1/3 to other activities like eating, traveling, gossiping or lazy interludes. The productive hours which form the legacy of human being are actually not even 20 years out a man who lives upto 70-75 years of age.

It is inspiring that all the literature, inventions, music, poetry and paintings was created by the humans in such a short time.

Life is a terminal disease.

Ghalib said;

thā zindagī meñ marg kā khaTkā lagā huā

uḌne se pesh-tar bhī mirā rañg zard thā

It seems that nature has been miser in giving such a short time, as well as judicious in giving everyone 24 hours in a day.

It is upon individuals how they can make best use of the allotted 24 hours. Some people in history made efficient use of this time by sleeping in a more efficient way. It is called polyphasic sleeping. It means to sleep more than 3 times in a day. It is said that Leonardo da Vinci and Tesla practiced the most intense example of polyphasic sleeping; six naps, each of 20-minutes throughout the day; called uberman cycle.

qaid-e-hayāt o band-e-ġham asl meñ donoñ ek haiñ

maut se pahle aadmī ġham se najāt paa.e kyuuñ