At what body temperature do brain cells die and seizures become imminent?

At what body temperature do brain cells die and seizures become imminent?

• A. 102°F
• B. 103°F
• C. 104°F
• D. 105°F

Answer: (D)

When the body overheats, brain cells lose their ability to function properly because heat disrupts cellular energy and membrane processes. Neurons rely on a steady supply of ATP and tightly controlled ion gradients to fire in an organized way. As core temperature approaches around forty degrees Celsius, proteins begin to denature and mitochondrial function falters, leading to energy failure, swelling, and breakdown of the blood-brain barrier. These changes compromise electrical stability in the brain, making seizures more likely and, with continued heat exposure, brain cells can die. This threshold marks a dangerous point where irreversible injury becomes a real risk, which is why this level is the best choice. In real life, temperatures this high require rapid cooling and urgent medical care.

When the body overheats, brain cells lose their ability to function properly because heat disrupts cellular energy and membrane processes. Neurons rely on a steady supply of ATP and tightly controlled ion gradients to fire in an organized way. As core temperature approaches around forty degrees Celsius, proteins begin to denature and mitochondrial function falters, leading to energy failure, swelling, and breakdown of the blood-brain barrier. These changes compromise electrical stability in the brain, making seizures more likely and, with continued heat exposure, brain cells can die. This threshold marks a dangerous point where irreversible injury becomes a real risk, which is why this level is the best choice. In real life, temperatures this high require rapid cooling and urgent medical care.