Energy Crisis

:ENERGY CRISIS:

God sent Adam with very few needs and strong limbs to fulfil those needs.As time passed and civilization advanced, man found  himself more and more aloof from nature ,lazy and luxurious and utterly dependent on machines ,and machines need energy .In the industrially advanced world of today the demand for energy is in increasing every day.We have machines and factories ,buses,cars,trains and planets and ships and sub-marine.Energy is needed to run them ,but this is not all Man has grown so lazy that he does not like even to wind his watch so energy is being used for running clocks and watches,typewriters shaving razors and many more things.

                                                               Wood later on coal was the first source of energy.Then came oil and passing through the stage of atomic energy man is looking forward to solar energy.We are naturally anxious because we know that a day may ultimately come when we have no more coal or oil.It will mean energy crisis people who have made careful calculations feel that we have used all available oil by the year 2025

and coal mines will also be empty in about thirty years .Man is on the look out for other sources of energy.Our present hope seems to rest on nuclear power.

                                                              But nuclear power is full of risk .It is very explosive and mishaps in nuclear reactors are very hazardous.The radio active  waves from a nuclear plant that has broken down are great threat to man .Moreover when a nuclear plant is dead  after 50 years it has to be buried and guarded for ever. 

                                                              The world is thus faced with energy crisis the condition of India is no better the demand for energy in India is growing it is estimated that if things continue that if things continue at this rate India will need four times of energy by the year 2000.The government of India is talking steps to supply energy for non commercials purpose from various sources such as bio-gas and quick growing forest plantation but rural poor are unable to pay the high cost of energy.

                                                              Never less all possible efforts will have to be made to save us from total darkness and helplessness scientist are doing their best but the major responsibility rests with the politicians because it is sometimes lack of political will that hinders developments in every fields.

   

        

A HOT DAY

: A HOT  DAY: 

                
There are four seasons in our  country .Summer is on of them it comes in month of March and  first week of April in India it is  very hot it so hot in India that all School ,Colleges,and  some partial  Government Offices are closed or High Courts are also closed in summer seasons. in summer seasons the morning is the busiest time for People are seen  walking about doing their activity.Some People are walking on grounds  and other children are running teenage children  playing.The Old age People are also walking they are aware of his \her health they inspire to other for walking or Physical Activity which is suitable for  Health to youngster. Some boys and men are go out for bath in River,Canals,swimming pools all are busy  on there works people try to  finish his\her work as soon as possible.In After noon the  temperature rises rapidly which irritates to us.Working People  are worried for this temperature rises they are working it also important for them to work they covered  his\her faces to protect from this heat of temperature.Liquid diet  is suitable in a hot days no buddies seen on roads at noon time.The towns and Cities are looking as Deserted.The shopkeepers are dozing .There are few people are on roads. Some people are suspended his \her works in summer (hot days) people always try to chill them in hot days We eat little food but drink a good deal  of water after food the thirst increase  so we drink large amount of water.We always try how to cool the body.Sweat comes out continuously.The hot winds roars the temperature rises rapidly day by day.There is a danger of catching( LOO) or getting sun stroke. Many people die from stroke. The farmers and labourers are not care for them  and go on with their work in the open under hot sun.The gardener sits under a shady tree.The evening again is pleasant like morning .Now we cannot live inside the house ,where we spend our noon comfortably.We come out in  the open we sprinkle water over the hot floor to make it cool.We go to market in evening to buy things.The market is busy again in evening by crowded to refresh. 


                                                 

Physical Activity

:-PHYSICAL ACTIVITY-:

What is physical activity

Physical activity is defined as any bodily movement produced by skeletal muscles that requires energy expenditure.It includes exercise and incidental activity integrated into daily activity. This integrated activity may not be planned, structured, repetitive or purposeful for the improvement of fitness, and may include activities such as walking to the local shop, cleaning, working, active transport  Lack of physical activity is associated with a range of negative health outcomes whereas increased physical activity can improve physical Dr.defines physical activity as any bodily movement produced by skeletal muscles that requires energy expenditure – including activities undertaken while working, playing, carrying out household chores, travelling, and engaging in recreational pursuits.The term "physical activity" should not be confused with "exercise", which is a subcategory of physical activity that is planned, structured, repetitive, and aims to improve or maintain one or more components of physical fitness. Beyond exercise, any other physical activity that is done during leisure time, for transport to get to and from places, or as part of a person’s work, has a health benefit. Further, both moderate- and vigorous-intensity physical activity improve health.

Benefits of physical activity and risk of insufficient physical activity

Regular physical activity of moderate intensity – such as walking, cycling, or doing sports – has significant benefits for health. At all ages, the benefits of being physically active outweigh potential harm, for example through accidents. Some physical activity is better than doing none. By becoming more active throughout the day in relatively simple ways, people can quite easily achieve the recommended activity levels.

"EXERCISE " and "physical activity" are frequently used interchangeably and generally refer to physical activity performed during leisure time with the primary purpose of improving or maintaining physical fitness, physical performance, or health. Physical activity is not exactly the same concept as exercise. Exercise is defined as a subcategory of physical activity that is planned, structured, repetitive, and purposeful in the sense that the improvement or maintenance of one or more components of physical fitness is the objective Conversely, physical activity includes exercise but may also be unplanned, unstructured, random and non-purposeful carried out for a multitude of reasons.

Physical activity can be at any intensity, from a simple twitch of a muscle, to an all out sprint. For practicality, physical activity can be viewed as a continuum from sedentary  to vigorous intensity activity. Intensities are broadly categorized according to energy expenditure using a standard measure of intensity, metabolic equivalents The broad categories are sedentary  behaviour, light activity, moderate activity and vigorous activity.