Answer:
A weakened immune system, increasing the risk of illness and infection
Nausea and abdominal pain, which can also lead to changes in appetite and weight loss
Seizures, stroke, mental confusion and brain damage
Lung disease
Problems with memory, attention and decision-making, which make daily living more difficult
Explanation:
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