🧼 Hygiene · Lesson 1/10
Hygiene Kills More Than Disasters Do
The real killer in every crisis
After nearly every disaster in history, more people died of disease than of the event itself — cholera, dysentery, typhoid, all born from failed sanitation. In survival, your two biggest enemies are invisible: contaminated water and the fecal-hand-mouth cycle. Hygiene is not comfort; it is your front-line medicine.
The cycle you must break
The disease cycle is simple: waste → hands or flies → food or water → mouth → illness → weakness → worse hygiene. Every hygiene skill in this course — handwashing, latrines, water treatment, waste control — is a link in that chain you can cut.
The five non-negotiables
- Wash hands after latrine use and before anything touching food.
- Never defecate near water — 60+ meters and downhill.
- Treat all water before drinking.
- Keep flies off food and waste — flies are the ferry service of disease.
- Keep the camp clean — garbage and scraps attract pests that carry disease.
Key takeaway: Clean hands, clean water, clean camp — cut the disease cycle at any link and you win the war you cannot see.