Health

Health is one of the most important infrastructures of development state of a physical, mental and social well being of a person and not merely the absence of diseases or infirmities. 
  The various conditions required for person to be healthy are:-
1. Balance diet.
2. Physical exercise and yoga
3. Living in healthy environment.
4. Free from mental disorders and internal conflicts.
5. Getting health education.
  The various factors responsible for the lower life expectancy of the Nepalese people are poverty, illiteracy and lack of public awareness. Many people in Nepal are illiterate and unaware about healthy habits. The remote districts do not have doctors, qualified medical persons required equipment and medicines. Due to the such problem, the life expectancy of Nepal is superstitious and go to witch doctors instead of hospitals. Due to above factors, the life expectancy of Nepalese people is low.
  According to WHO, health is defined as the state of physical, mental, and social well-being  of a person, not merely the absence of diseases or infirmities." A healthy person can think and work better than the unhealthy ones. If they work better than they can earn more and become wealthy. Health is like a boat which helps us to reach to our aim. Healthy person can think creatively and develop the country. A person can't survive without health. Health is boon to us. Wealth without health is work less. So, we can say that health is the greatest wealth.
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The Population Challenge:
   From 1950 to 2000 the world's population grew from about 2.5 billion to more than 6 billion. The pace of population growth may continue to increase. Can the world's land  and resources support the demands of so many people? In this essay, Lester Brown, founder and president of the Wol
   The population of the world grew at an infinitesimal rate for most of human history, abou 0.002% per year. Not until the 17th century, with advance in science, agricultural, and industry, did world population growth begin to accelerate. Over the next 300 years the world's population increased fivefold, from about 500 million in 1650 to about 2.5 billion in 1950.
    In the second half of the 20th century the population grew even faster, reaching more than 6 billion in 2000, according to the United Nations(UN). These figures mean that the world's population has grown more in 50 years then it did during the more then 4 million years since our early ancestors first stood upright.
   This unprecedented surge in population, combined with rising individual consumption of food, water, and natural resources, has begun to strain Earth's capacity to sustain human life. Demands for water are draining supplies from aquifers and other water sources. Demand for fish, a food staple in many areas of the world. Human activities that cause pollution and depletion of fish stocks around the world. Human activities that cause pollution and encroach on natural habitats are responsible for the greatest extinction of plant and animal species since the dinosaurs disappeared about 65 million years ago. Meanwhile global warming has begun to change Earth's surface temperature caused largely by the burning of fossil has begun to change Earth's climate in ways not yet fully understood. In short, the growth in human population and the scale of human activities appear to be redirecting the natural course of our planet.