From the Camp Crowder Central Signal Corps School Workbook
Hygiene in the Army deals with the personal care that must be exercised by each individual soldier in relation to his body for the preservation of his health.
1. Care of the Body (Health and Cleanliness.) The entire body should be bathed at least two times each week. Shower baths are preferable. Special attention should be paid to the armpits, crotch, and feet.
Never allow your hair to become long and ragged. Weekly haircuts are advisable. Long hair is untidy and provides an excellent breeding place for lice, one of the main carriers of the deadly typhus disease. Hair should be washed at least once every week or ten days. Care should be exercised to rinse the hair carefully after each washing.
Finger and toe nails should be kept clean at all times. They should be cut straight across to prevent any possibility of ingrowing nails.
The teeth should be brushed carefully twice each day. Brushing should be done vertically from gums to cutting edge both on the inside and outside surfaces. It is important that you take good care of your teeth and visit the dental clinic whenever necessary.
The feet should be kept clean at all times-preferably washed daily-and always dried carefully. Wear socks that are clean and without holes or darned places to prevent blisters.
Eat regularly and chew your food thoroughly, By drinking plenty of water you will succeed in maintaining proper and regular bowel movements.
At least seven (7) or eight (8) hours of sleep is necessary to maintain good health. Lack of sufficient sleep will cause laxity and listlessness which may prove costly.
As soon as you feel sick or believe that you have contracted a disease, report to the First Sergeant and be sent on sick call!