Still haven't found what you're looking for?*

With the endorphin levels from the last 42.195km run slowly dwindling, one has recalculate the possibility of doing it all over again! That is the problem with mankind - Ever since the beginning of mankind, people have found pleasure in the these pleasure experiences which they have found difficult to give up.
Let us look at history...Thanks to History Channel.
Circa 1500 BCE, Aryan invaders brought in scriptures as they invaded India. This scriptures (e.g Rigveda) tell of pleasurable heavenly divine experiences with Soma - ? an extract or fruit of a tree. It is said to open the consciousness into a different level where one can communicate with God and the truth of mankind would be laid bare to see. The elusive tree was never discovered - perhaps it was abused to extinction by overzealous devotees or banned due to fear of its potency!
Sumerian, Egyptian, Greek and Roman civilizations had their own beers and wines to feed the masses. The Sumerians are said to use 40% of their crops to yield these beverages. Wines were freely used to treat the sick by Jesus. It seems that during the march to crucifixion, He was offered wine and opium to allay the pain but He refused.
In some instances, a fungal contaminant in wines produced psychedelic effect.

Mayan chief forbids a person to touch a jar of chocolate

In the Middle Ages, the Arabs discovered distillation to produce aromatic perfumes. The Europeans went one step further to use this same process to produce strong spirits. And everybody in Europe was happy for a while until alcoholism became a real problem.
Christopher Columbus' travel to the New World in 1492 opened the floodgates of intoxicants. The Aztecs were using spiced up Cacao drink ceremonially and a daily basis. The invaders started abusing for its mind altering property, so much so that the Vatican had once outlawed its use after a nun neglected her nun duties after overindulging in cocoa beverages.
The Indians (Red) also imparted the concept of a peace pipe and tobacco. It found its way to the European everyday life after Sir Walter Raleigh walked to the Queen's courtyard with a pipe. Another American contribution to the world came about when Francisco Pizarro found that the slaves in Andes working long hours laboriously in the high altitude after consuming coca leaves.
The Europeans extracted pure cocaine from these leaves and this alkaloid became a medical miracle. Its use was popularized in the modern world after Sigmund Freud used cocaine for depression. I suppose he also dwell into the inner labyrinth of the inner space of the mind to suggest his weird psychological mumbo-jumbo of Oedipus complex and genital envy!   Pretty soon it was the panacea for all humanly ailments from headaches, cough, alcoholism to general malaise.
The enterprising John S. Pemburton decided to make a killing by mixing coca and cola (from Africa) to legally sell the addictive substance at the counter of the pharmacy (like a saloon bar), colloquially calling it 'a shot in the arm'!
As psychological dependence increased, cocaine was outlawed.
The irony of all this is that the continent that import the substances are bearing the brunt of its ill effect. The Mayans, Red Indians and the Aztecs were consuming coca, tobacco and cocao without any problems because they used it with respect for ceremonial reasons whilst maintaining its sacredness and maintaining the discipline associated with it (the fasting and the rituals). The Red Indians took in alcohol and lost their rich heritage to alcoholism. Drug abuse and addiction are perennial problems in the developing and developing worlds.

P.S. Freud died of throat cancer. He smoked 20 cigars a day!

*I Still Haven't Found What I'm Looking For (U2)