Diseases like the one destroying humanity right now impact human populations by taking away a considerable amount of people away. This can be arguably effective in tackling overpopulation in places like India and China, whilst negatively affecting places like the USA, which could lead to higher immigration and more problems
The limbic system is a set of structures in the brain that deal with emotions and memory. It regulates autonomic or endocrine function in response to emotional stimuli and also is involved in reinforcing behavior
