• Question: how does serotonin regulates our mood?

    Asked by no1azaqhab to Ben, James, Jen, Michael, Susanna on 14 Mar 2013.
    • Photo: Susanna Martin

      Susanna Martin answered on 14 Mar 2013:

      You can find serotonin in the brain, it is involved with the neurones and synapses. Some scientists believe that if you don’t have enough serotonin in the synapse then this can be connected to feelings of depression. To try and help this they developed something called a Selective Serotonin Reuptake Inhibitor (SSRI). In brief, when the serotonin is released it hangs out in the synapse for awhile, having an effect on the brain, until it is absorbed back into the cells. The SSRI work by slowing down the absorbing process so that the serotonin is in the synapse for longer.
      Interestingly other research has showed that things like chocolate or hugs can also slightly increase the levels of serotonin in your brain!
      It’s important to remember that it isn’t just one thing which regulates our mood, for instance another chemical called Dopamine can also have an effect.

      If you’re interested in the synapses and neurotransmitters in the brain have a look at this website : http://www.s-cool.co.uk/a-level/biology/nervous-and-hormonal-control/revise-it/synapses

    • Photo: Jen Todd Jones

      Jen Todd Jones answered on 14 Mar 2013:

      Serotonin is a natural chemical in the brain, called a neurotransmitter, it’s not my area of expertise but as Susie said it’s related to depression which I have learned about before.

      I also like her facts about serotonin – I love the idea that chocolate relases it in the brain, I use it as an excuse for eating more!

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