Wear a woolen bodysuit in the Sahara
- Wool's fiber structure traps air and creates a thermal barrier that insulates against external heat as well as cold - desert cultures have worn full body coverings for exactly this survival reason.
- The Sahara drops to near-freezing temperatures at night, making a wool bodysuit actively protective during the cold hours rather than purely a heat liability across the full day.
- Covering the skin in the desert prevents direct sun exposure, reduces water loss through evaporation, and protects against sunburn better than leaving skin bare in extreme heat.