Serotonin is the hormone what makes us happy, so why aren’t we just injecting it into our body/taking it as tablets to get out of misery on command?
In: Biology
The simple reason is that we actually have no fucking idea of what cause us to be happy on a regular basis.
The neurotrasmitters-imbalance theory of depression is getting smashed a bit more every day.
Take for example serotonin. We cannot simply drink it, because as other said it cannot pass the blood-brain barrier.
So we use drugs that *can* pass that barrier, and cause your brain to re-absorb less serotonin. By reabsorbing less of it, you have more serotonin available in your brain.
The problem is that you won’t feel better quickly. You will feel better after months of taking the drug.
But the drug is acting every single day! You have more serotonine in your brain every single day!
So why the effect doesn’t start on day 1?
We don’t know. We have some hypotesis, but we don’t know.
This is why having a lot of serotonine in your brain will not make you Happy on a bad day.
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