The sympathetic system is our “flight or flight” defense to help during stressful situations. It prepares the body to either fight the threat or to flee. The parasympathetic system is what brings the bodily functions back to homeostasis after the “fight or flight” had been activated and the threat is over.
The best answer is the first option. Cortisol is the hormone that narrows arteries to increase blood pressure. It is a response to stress. Adrenaline, on the other hand, is the hormone that is released also due to stress but its effect is to speed up the heart. Estrogen is not related to stress and is only found in females.
Generally depending on the antibiotic they target the phospholipids on the plasma membrane of the bacteria in your system that is making you sick I say bacteria viruses generally mutate so frequently that their phospholipids cannot be targeted which is why when you have the flu all that can cure you is time, you can only hide the symptoms.
