Serotonin (5-HT) – Mood & Depression

Question 1

What is serotonin’s role in mood disorders?

Answer 1

Low serotonin is linked to depression.

Question 2

How do SSRIs (e.g., fluoxetine/Prozac) work?

Answer 2

Block serotonin reuptake, increasing availability.

Question 3

How does MDMA (ecstasy) affect serotonin?

Answer 3

Reverses serotonin transporters, flooding synapses with serotonin.

Question 4

What hallucinogens affect serotonin?

Answer 4

LSD & psilocybin (serotonin receptor agonists).