| Show bra n must be kept active just as we use our muscles it we wish to retain their strength so like wise must be continue to use the brain in order to preserve it in working or der use brings blood to the organ and so its nutrition is kept up and its healthy state is retained As a re suit of this it may be said that as a rule professional mei me i or judges or legislators whose minds are contina ally active live longer than those who retire from business at an early age and have no occupation to employ their leisure |