Chapter

The Three Major Chemical Systems in the Brain Related to Depression
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32:30 - 39:01 (06:31)

Understanding the three major chemical systems in the brain - norepinephrine, dopamine, and serotonin and how they affect depression symptoms can help in using selective serotonin reuptake inhibitors (SSRIs) to increase the efficacy of serotonin in the brain synapse.

Clips
SSRIs increase the efficiency of serotonin at the synapse, preventing it from being wiped up from the synapse between two neurons.
32:30 - 36:12 (03:42)
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SSRIs
Summary

SSRIs increase the efficiency of serotonin at the synapse, preventing it from being wiped up from the synapse between two neurons. They don't increase serotonin levels, Prozac and Zoloft are examples of SSRIs.

Chapter
The Three Major Chemical Systems in the Brain Related to Depression
Episode
Understanding & Conquering Depression
Podcast
Huberman Lab
The norepinephrine, dopamine, and serotonin systems are related to activity/alertness, motivation/pleasure, and grief, respectively.
36:12 - 39:01 (02:48)
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Depression
Summary

The norepinephrine, dopamine, and serotonin systems are related to activity/alertness, motivation/pleasure, and grief, respectively. Lack of dopamine in depressive patients can lead to anhedonia, and fluoxetine can increase neurogenesis and alleviate depressive symptoms.

Chapter
The Three Major Chemical Systems in the Brain Related to Depression
Episode
Understanding & Conquering Depression
Podcast
Huberman Lab