Systematic
& formulated knowledge is called science. Science is the study of the
nature & behavior of the physical & natural world & society through
observation & experiment. It has made various inventions for the comfort
& development of human knowledge. The inventions of various medicines,
means of transport & communication, machineries are the various gifts of
science. The various inventions of science have made our lives easy &
comfortable. We are indebted to science for all the comforts of life, easy
& speedy transport & communication & long healthy life. Science has
also made destructive weapons like atom bombs & hydrogen bombs which can
kill millions of people within a short time. Thus the gifts of science can be
the worst curse. But science is not responsible for this. It’s the wicked brain
of man which is responsible for this curse. Science proves to be a blessing if
& when it is used properly. And it is a curse when it is misused.
Physical exercise means the regular movement of the limbs of our body according to rules. It is essential to keep our body fit & mind sound. There lies a close connection between body & mind. We can not think of a sound mind without a sound health. It is physical exercise which enables us to build a good health. Physical exercise makes our body active & the muscles strong. It also improve our power of digestion and blood circulation. It gives strength to our brain. A machine gets rust for want of proper use. Human body is also a machine. It becomes inactive & weak for want of exercise. So we should take regular physical exercise in order to maintain a sound health and lead a happy life.
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