Question

agonists drugs and poisons that increase the activity of one or more neurotransmitters

1. pretend like you want to design a drug to help people who struggle with depression and anxiety. what neurotransmitters would you target and why? would your drug be an agonist or an antagonist?

Explanation:

Depression and anxiety are linked to low activity of neurotransmitters that regulate mood, calmness, and reward. Serotonin regulates mood, sleep, and anxiety; low levels are tied to both conditions. Norepinephrine affects alertness and stress responses, with dysregulation in anxiety and depression. Dopamine influences motivation and pleasure, which is often diminished in depression. An agonist drug increases neurotransmitter activity, so it would boost the function of these underactive chemicals to alleviate symptoms.

Answer:

1. Targeted Neurotransmitters & Reasons:

• Serotonin: Low serotonin activity is strongly associated with depression and anxiety; it regulates mood, emotional stability, and anxiety levels.
• Norepinephrine: Dysregulation of norepinephrine (linked to stress and alertness) contributes to both anxious and depressive symptoms.
• Dopamine: Reduced dopamine function is tied to the lack of pleasure, motivation, and anhedonia seen in depression.

1. Drug Type: The drug would be an agonist, as it needs to increase the activity of these underactive neurotransmitters to restore balanced mood, reduce anxiety, and improve motivation/pleasure responses.