Ear, 162 ache, treatment of, 164 description of, 162 douching, 56 wax, 163 removal of, 163 Eczema, 65 chronic, 65 seborrheic, 71 causes of, 72 symptoms of, 71 treatment, 73, 74 Education and the health of girls, 234 college, 232 discipline, 232, 233, 320 effect on home, 237 on physical health, 234, 236 higher, of women, 234-237 President Eliot on, 235-237 mental development, 228-232, 320 faculties, balancing of, 234 habits, 186, 187 moral sense, 230, 231 physical, influence on health, 310-316, 324 religious instincts, 231 self-control, 229 truthfulness, 228, 229 Eggs, digestibility of, 110 nutritive value of, 110 Electric-light baths, 44, 46 comparison of, with other heat procedures, 44 description of cabinet, 44 indications for use of, 45 length of stay in, 44 reduction of weight through, 46 symptoms of too prolonged stay in, 46 treatment, finishing, 45 Eliot, President, on higher education of women, 235-237 Emotional nature, 230, 231 Emotions, depressing, 246 physical effects of, 246 the natural, 226, 227, 230, 231 violent, 243 Employees, care of, 324, 357 Enemas, 53, 54 injurious effect of daily, 54 Energy, 99 Environment, 237-240 friends, 238 harm done by bad, 238, 239 literature, 239, 240 toilet, 237, 238 Enzymes, action of, 84 defined, 84 Erepsin, 94 Eustachian tube, 162 Exercise after eating, 316 after fasting, 335 and amusement, 357, 370 benefits, of, 311 312, 313, 323-325 effects of, on brain development, 291 on character, 291, 320 on heart and lungs, 295, 310 on muscles and blood-vessels, 293, 294, 295, 312 gradual training in, 312 heart’s need of, 310 increase of red blood-cells through, 294 length of time for, 334, 362 outdoor, horseback riding, 328, 368 mountain climbing, 365 rowing, 369, 370 running, 341, 364 swimming, 365-368 walking, 362-364 passive. See _Massage_. physiology and pathology of, 292, 311, 312 regularity in, 288, 335, 362 rules for taking, 334-336