A healthy body is necessary for a healthy mind.As is known,to have a sound mind,we must first have a sound body.This is of vital importance.Only by keeping ourselves healthy and strong can we feel energetic and vigorous in studying and working and live a happy life.
To keep ourselves fit,physical exercise is the best way.In taking part in out-door sports,we are closer to nature and can take in fresh air.The beauty of nature will keep us clear-headed,which is essential to our health.Besides,sports stimulate the circulation of blood and help to excrete the wastes in the body.Sports can also work up our appetite and activate our digestion.As a result,we can become strong-bodied.
I always take an active part in physical exercise and enjoy good health.I seldom get sick but feel vigorous even if I work a whole daylong.I shall keep up doing physical exercise so as to live longer and do more for the country.