The weather at Everest Base Camp is very severe. It is always over 35°C during the day and under 25°C at night.
The Khumbu cough, also known as “high altitude hack,” can be serious enough to cause a person break a rib. It is caused by the low humidity and sub zero temperatures experienced at altitude, and is thought to be triggered by over exertion.
High-altitude sickness is serious. According to the experience of professional Sherpa mountain-climbers, common symptoms include dizziness, severe headaches, and trouble breathing.
If the disease is serious, the sick person becomes delirious. In the next stage, the brain swells and then the person could die. The only thing that can possibly save you is to go down the mountain to a lower altitude.
Most things that comes in or goes out of Base Camp are hiked. Helicopters are an option for a very high price.
Restrooms consist of a plastic barrel, and all waste is hiked out of camp by porters.