Is 43C safe for the body?

A body temperature of 43°C (109.4°F) is dangerously high and can be life-threatening. Such extreme hyperthermia can lead to severe health complications, including organ failure, brain damage, and even death. The normal human body temperature typically ranges from about 36.1°C to 37.2°C (97°F to 99°F), and temperatures above 40°C (104°F) are considered critical. Immediate medical attention is required if someone reaches such a high temperature.