Learn from contradictions, sugar and salt tells to man

Can any one explain why certain interesting contradictions exist in human life whereas such contradictions never exist in nature although it may apparently be present in some form or other? 

Just look at the fascinating fact that the three forth of the landmass is covered by sea.  The sea water is very saline or salty.  In the true sense, salt is available in the abundance on the land and in the sea.  But unfortunately, the disease due to lack of salt is plenty in human world.  Salt deficiency and problems due to low level of salt in human being is growing world wide. 

On the contrary, the sugar is manufactured by man through a very rigorous process. The sugar care is cultivated, processed, purified and thus sugar is manufactured.  Always the availability of the sugar is far less when compared to the abundant availability of the salt.  Interestingly, in-excess of sugar only contribute to the disease called diabetes mellitus in human life.  The far reaching effects/consequences of diabetes mellitus in human life are well known to the world.

What a great contradiction that many are suffering from insufficiency of salt which available in abundance in nature and at the same time many suffers from in-excess of sugar in the body which is available in very small quantity in nature.

Interestingly the in-excess/accumulation of sugar in human body is leads to a dangerous disease whereas the accumulation of the same sugar in fruits adds value, taste and merit.  In human life, it causes the disease called diabetes and which is always known to affect the human beings with age or it can be generally called disease associated with age.  The fruits also with age accumulate sugar and the above process is called repining, but it makes them very tasty and valuable.  What a paradox, in one instance, we describe it to be a disease whereas in other instance, we call it very tasty and sweet fruits.  

From the above paradox or contradiction, what man has to learn?  Evolution is always right.  When certain resources are available in plenty, the importance of conserving them doesn’t arise.  Since the very basic instinct of conservation is not there for such resources, hence the resource depletion is easy and possible.  That is what contributes to the problem of salt insufficiency/deficiency.

In the second instance, when the resource is very limited, the memory process favour undue conservation and accumulation.  This is only manifests as diabetes mellitus in human world. 

Another lesson to be learned is that anything we have in abundance, we seldom care or conserve or value them and anything we have a little, we tend to multiply them.  The happiness and the blissfulness man has in abundance, but he never values them and the sorrow the man has in scanty, but he tends to accumulate and multiply.  At the end, he feel sad than be happy. 

The third important lesson man has to learn about how when sugar makes the fruits tasty whereas make the man diseased?

The trees/plants make the fruits to offer to the world, hence in-excess accumulation of sugar never harm them.  On the contrary, man accumulate the sugar within him for himself, hence it harms him. Man has so much to learn from contradictions.