62 TEACHING SCIENCE IN SECONDARY SCHOOLS

 In addition to the information they provide, the above mate-
rials may lead to activities on the part of the student that may
bring to light hidden abilities and interests.

 SECTION 5. HEALTH AND SAFETY
 There is no more important aspect of living than good health.
Good health reaches beyond freedom of disease. It should be a
matter of personal and community pride. To build a strong na-
tion, we first have to build strong minds and bodies. The stu-
dents need to be reminded that "cleanliness is next to godliness."
A minimal health knowledge includes the areas of diet, exercise,
posture, rest, and care of the body in general; allergies; sex edu-
cation and heredity; drugs and preparations; safety.
 There are known effects of diets on growth, vitality, disposi-
 tion, complexion, and susceptibility to disease. Much of this
 knowledge should be made known to the science student. The
 student needs rather detailed information of how much, and
 what kind of, exercise is good for him-in terms of his growth,
 his self-confidence, his bodily functions, and his social life. It
 seems plausible that some knowledge about the complex inter-
 relationships which exist between skeleton, viscera, muscles, and
 nerves may contribute to the student's attaining and maintain-
 ing a satisfactory posture. The body demands a certain amount
 of rest and sleep. The care of eyes, ears, teeth, skin, and hair is
 of most importance.
 Certain diseases are so widely spread that a fairly detailed
 knowledge of their cause and prevention is necessary for all high
 school students. For older adolescents information concerning
 venereal diseases, the recognition of infection, and reliable pro-
 cedure in case of infection, constitutes some of the most im-
 portant health education that the school can give. This may be
 approached through the study of the physiology of the human
 body. The miracle and wonder of life should be made known
 to each student through the study of reproduction and em-
 bryology; and his responsibility to society, through genetics.
 The old secretiveness on these matters is not part of our modern
 attitude.