Brief description

Basic hygiene is the set of essential practices and knowledge to preserve health and prevent disease through cleanliness of the body, food, and environment. It is not a single object, but a system of habits and tools fundamental for survival.

Use / Function

Its practical purpose is to reduce the burden of pathogens and parasites:

• Disease prevention: Reduces gastrointestinal, skin, and respiratory infections.
• Body maintenance: Prevents dental cavities, wound infections, and skin problems.
• Psychological well-being: Improves morale and comfort in survival situations.
• Scale: Personal and community.

Operating principle

It is based on the mechanical and chemical removal of dirt and microorganisms:

• Mechanical: Friction (rubbing, brushing) dislodges dirt and bacterial biofilms.
• Chemical: Soap or ash breaks down lipid membranes of viruses and bacteria, and emulsifies fats so water can wash them away.
• Isolation: Waste management (latrines) separates pathogens from water and food sources.

How to create it

More than manufacturing, it is about establishing routines and making the necessary tools:

1. Hand washing: Critical after defecating and before eating. Use water and soap (or ash/sand if soap is unavailable).
2. Dental hygiene: Daily brushing with a chewing stick or toothbrush and mild abrasive (charcoal, chalk).
3. Body bathing: Regular cleaning, paying attention to folds and wounds.
4. Waste management: Use of latrines away from water sources.

Required technological level

Basic. Does not require advanced technology, only knowledge and discipline.

Materials needed

• Water: The universal solvent for cleaning.
• Soap: For chemical cleaning (or substitutes like soapwort).
• Mild abrasives: White ash, fine sand, clay, salt.
• Tools: Toothbrush, comb, containers.

Variants and improvements

• Primitive: Use of sand, ash, and river water; chewing sticks for teeth.
• Advanced: Scented soaps, fluoride toothpaste (if available), hot water showers, sewage systems.

Limits and risks

• False security: Washing with contaminated water can be worse than not washing. Water must be safe or boiled.
• Irritation: Excessive use of strong abrasives (like pure ash or coarse sand) can damage skin and dental enamel.
• Cross-contamination: Sharing hygiene tools (brushes, towels) can spread diseases.