Answer:
Prefrontal Cortex
Explanation:
The Prefrontal Cortex is the part of the brain which does not fully develop until the adult years. The complete development of the prefrontal cortex occur between 18 - 25 years.
The prefrontal cortex remains under construction during the adolescent years. In humans, the prefrontal cortex is located in the front part of the frontal lobe. It's an important site of the brain for working memory.
Why do people settle near river? The land along the rivers is fertile. If there is fertile land, then crops can be grown. Animals can also be raised if there is enough food and water for them. People learned that they could stay in one place and grow enough food to feed their community, if they were near a water supply.
1. Economy - the very high taxes, credit card rates, investments, stocks, and the market in general.
2. Education - college tuition is increasing at an insane rate. Tens of thousands of dollars gone after graduating college.
3. Equality - In many places around the world the wage gap is still a tremendous problem, women are treated as less than men in third world countries.
4. Insurance - health insurance, car insurance, and many more are so expensive that many people don't even own them. Which causes a plethora of problems.
5. Drug and Alcohol Abuse - It's becoming the norm to drink and use drugs and not even among adults but in high school as well, it's harming our children's health and might ruin our incoming generation.
I hope I've answered your question well, have a great day! :)