What does the amygdala have to do with teens' emotions?​

Because the prefrontal cortex is still developing, teenagers might rely on a part of the brain called the amygdala to make decisions and solve problems more than adults do. The amygdala is associated with emotions, impulses, aggression and instinctive behavior.

Well actually before the big bang, these elements still existed.  Water existed back then, and water is a compound made out of oxygen and hydrogen.  Sugar also existed.  Elements still prior toward the big bang.