The brain stem controls the lungs and heart, so it is essential for human survival. The hypothalamus is in charge of temperature regulation, hunger, and thirst. The limbic system is responsible for emotions like fear and desire. It’s also involved in memory and sense of smell. (Brain Geek; parts of the brain)
The brain has traces of 10 different chemical elements, which is threshold three in the big history course. Through increasing complexity and with the correct Goldilocks conditions, stars started to light up (Threshold two) and then explode in super novae to create the chemical elements we have today. These elements are: Antimony, element fifty-one, Cesium, element fifty-five, Chromium, element twenty-four, Cobalt element twenty-seven, Iron, element twenty-six, Rubidium, element thirty-seven, Scandium, element twenty-one, Selenium, element thirty-four, Silver, element forty-seven, and Zinc, element