Why can't we able to sleep after seeing light ?

Our  body has its own sleep and wake cycle. When we are exposed to light at night ,this cycle's rhythm is thrown off . As a result , our body produces less melatonin hormones which helps in making us sleepy .

As a result , we don't get enough sound sleep . Sleep deprivation is also linked with these side effects,

 

Depression , obesity , accidents and increased risk of chronic diseases .

It's better to switch off the lights while going to sleep .

Independence day special

 Today we are celebrating 75th year of independence day . We got independence from British rulers on 15th August 1947.

But whole of India was not ruled by British . I agree most part of  India was obeying British orders. 

Here and there,, Portuguese and French people also have ruled India . For example, Goa .. Goa was not ruled by British . It was under Portuguese administration  .

Though most part of India which were ruled by British have got independence on 15th August, 1947 : Goa had not been the part of India .

Though British gave us the independence,, Portuguese did not . It was after independence that too on December  19, 1961 Goa and other Indian colonies ruled by Portuguese became part of India with the success of operation vijay .

Same goes with French ruled Indian colonies . French were occupying pondicherry and other places . Even they did not leave India as soon as British left . With lots of negotiations between Indian government and French government  ,  finally pondicherry and other French colonies became part of India from May 1961 .

Our freedom struggle is not only with British but also with Portuguese and French who had established their colonies here . 

Oooo

Fool's gold

 The mineral Iron Pyrite is also known as fool's gold is an iron sulphide with chemical formula FeS2 .  It is the most abundant pyrite found on earth's crust .

Pyrite's metallic lustre and pale brass yellow colour give it a superficial resemblance to gold  , to the untrained naked eye . Unlike gold ,it is brittle and can be easily broken .

Iron pyrite is unstable at earth's surface . It is present in the dust from the coal mining operations . Pyrite oxidation is sufficiently exothermic . Because of this , underground coal mines have serious problem of spontaneous combustion .

Why do we close our eyes when flashed with strong light ?

We close our eyes when large amount of light falls on it . It is a reflex action , an involuntary action . The cells called red cells and cone cells in the eye control the passage of light through our eyes .



When a concentrated ray of light falls on our eyes ,  the red and cone cells in the eye can not handle it . The condition may lead to blindness . So these cells send a message to the spinal cord about the consequences . Spinal cord sends the command to the eyelids to close to prevent further damage .




Closing the eyes when large amount of light falls on it is the mechanism of self protection .

Cat and the grasshopper

No mistake in the title of this post . It is the story of a cat and grasshopper .


One rainy day , rain had given little break to its work . Thinking it as the right time to take a look at surroundings , a cat had come out of the house walking towards the garden .


That time itself , it saw a grasshopper flying in the garden . Cat got attracted by grasshopper . Cat got impressed by the green coloured body of grasshopper . Its body was shining .


Cat went near grasshopper and congratulated it for its shining green coloured body . Cat wanted to know the secret behind this .


Grasshopper proudly said it is all because of the diet it is following . It said it only eats the dew fallen on grass in the early morning . That is the reason behind its green and shiny body .



Cat decided to follow the same diet as it was unhappy with its fat body . It started eating only the dew found on grass .



All went well for 2-3 days . Then cat began to feel weak and low in strength . But it didn't stopped its new diet thinking it would be having slim and shinier body just like grasshopper .



But its body didn't get adjusted for the new diet . Cat was growing weak day by day and one day it was dead ....



MORAL OF THE STORY :  We must accept ourselves as we are . Just be ourselves . Health is wealth .