😮STRESS INCREASES SEROTONIN OUTPUT IN RAPHE NUCLEI:
Stress triggers adaptive and maladaptive changes in the central nervous system. It has been shown that cortisol/stress can increase tryptophan hydroxylase mRNA, leading to greater serotonin output from L-Tryptophan (Chamas et al., 2004).
👁HIGH SEROTONIN IMPAIRS GLUCOSE CONTROL:
The serotonin transporter (SERT) function is to "recycle" or remove (more accurately) serotonin from the synapse; effectively rendering it inactive. Ie. More SERT = Less serotonin flooding your brain.
Reduced (SERT) function causes insulin resistance and liver dysfunction independent of food intake (Chen et al., 2012).
📚SEROTONIN LOWERS MOTIVATION:
Serotonin reduces incentive motivation (Browne & Fletcher, 2016). In other words, increasing Serotonin lowers one’s desire to chase money/reward/goal. In addition, high serotonin can cause EMOTIONAL blunting and apathy, anhedonia - ie. the INABILITY to experience pleasure.
(This is not medical advice)
💥TAKEAWAY:
Serotonin, although important for many biological functions, can cause unwanted fat gain/difficulty losing weight when in EXCESS. Generally, Dopamine, on the other hand encourages MOTIVATION, fat loss, and drive. Stay tuned more info on this soon!
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