Australis13

You're welcome. Unfortunately there's no one place where you can read up on it; in my case I searched for any studies or papers on autism and/or serotonin to get a better understanding of how the system worked. Whilst some research is behind paywalls, a lot is still publicly accessible (ResearchGate is one such site). Google Scholar is probably the easiest way to search for relevant papers, though, as it usually lists where the full paper (as a PDF) is available.

Some of the papers I've come across that may be of interest to you:

• Serotonin is a key factor in motor function - Jacobs, B.L. and Fornal, C.A. (1999) ‘Activity of serotonergic neurons in behaving animals’, Neuropsychopharmacology: official publication of the American College of Neuropsychopharmacology, 21(2 Suppl), p. 9S–15S.
• Serotonin seems to play a role in "hot" vs "cold" processing; this may be why emotional processing is affected in autism - Robinson, O.J. and Sahakian, B.J. (2009) ‘A double dissociation in the roles of serotonin and mood in healthy subjects’, Biological psychiatry, 65(1), pp. 89–92.
• One form of the serotonin transporter is linked to increased sensory sensitivity, often found in autism - Homberg, J.R. et al. (2016) ‘Sensory processing sensitivity and serotonin gene variance: Insights into mechanisms shaping environmental sensitivity’, Neuroscience and biobehavioral reviews, 71, pp. 472–483.
• Vitamin D's role in serotonin synthesis and relevance to autism (this paper notes that CNS serotonin is lower in autism than in NTs) - Patrick, R.P. and Ames, B.N. (2014) ‘Vitamin D hormone regulates serotonin synthesis. Part 1: relevance for autism’, FASEB journal: official publication of the Federation of American Societies for Experimental Biology, 28(6), pp. 2398–2413
• Serotonin-NAS-Melatonin pathway affected in autism (Melke et al in particular notes the genetic basis for this) - Pagan, C. et al. (2014) ‘The serotonin-N-acetylserotonin-melatonin pathway as a biomarker for autism spectrum disorders’, Translational psychiatry, 4, p. e479., Martinez-Cayuelas, E. et al. (2022) ‘Melatonin Rhythm and Its Relation to Sleep and Circadian Parameters in Children and Adolescents With Autism Spectrum Disorder’, Frontiers in neurology, 13, p. 813692. and Melke, J. et al. (2008) ‘Abnormal melatonin synthesis in autism spectrum disorders’, Molecular psychiatry, 13(1), pp. 90–98.
• The TPH2 gene (which controls the rate-limiting enzyme for serotonin synthesis in the brain) may be involved in autism - Coon, H. et al. (2005) ‘Possible association between autism and variants in the brain-expressed tryptophan hydroxylase gene (TPH2)’, American journal of medical genetics. Part B, Neuropsychiatric genetics: the official publication of the International Society of Psychiatric Genetics, 135B(1), pp. 42–46.

As for the quantity of melatonin, that was in discussion with my doctor. He expected that the commonly available 2mg supplements wouldn't do anything and that it would probably take 10mg to have a significant impact. He also said not to go above 20mg. In my case, 10mg works very well, but was increasing the risk of being tired the next day - so I am currently on 5mg (this helps, but I don't sleep through the night as well as I did on 10mg).

Also on the safety side of things, be aware that 5-HTP should not be taken with SSRIs without careful medical supervision due to the interaction and risk of serotonin syndrome.

I have never had many dreams, but they experienced an uptick when I started melatonin. Stress also makes me have more nightmares.

There is growing evidence that autism involves a dysfunction of the serotonergic system, particularly the central nervous system (CNS) pathway (Tryptophan -> 5-HTP -> Serotonin -> N-Acetylserotonin -> Melatonin). There are also studies showing that the conversion from N-Acetylserotonin (NAS) to melatonin is impeded in autism.

I did a lot of digging into this to try to aid my sleep and general health. Here are the key takeways:

1. Vitamin D regulates serotonin synthesis and Vitamin D deficiency can reduce the amount of Tryptophan entering the CNS, so make sure you're not deficient. Unfortunately Tryptophan competes with other large amino acids for entry into the brain, so if you can't get enough through your diet, you can use 5-HTP supplements to aid serotonin production.
2. Vitamin B6 is required for the conversion of 5-HTP to serotonin.
3. Low magnesium has been correlated with a reduction in serotonin production.
4. Melatonin supplements (anywhere from 5mg to 20mg) can help a lot with making up for the poor conversion from NAS to melatonin.

If anyone's interested I can dig up the studies/references I used.

(As an aside, sleep apnoea will also reduce the amount of REM sleep, as past a certain point your brain will keep pulling you back into light sleep in order to breathe. If you haven't checked if you have sleep apnoea, please do so!)

In a heartbeat!

Given how bad the show's writing has been for years and the declining in viewership in the Chibnell era, I'm actually surprised the BBC actually reversed course for once.

The Daleks' Masterplan is an obvious candidate for a missing story, but I think I'd also be happy to swap Planet of Giants for Marco Polo.

Alternatively, I'd swap the two surviving episodes of The Crusade for the missing two episodes of The Reign of Terror. The Crusade doesn't really work for me, as it is unlike most other 60s historicals where there is a clear historical arc (e.g. buildup to the burning of Rome in The Romans or the fall of Robespierre in The Reign of Terror).

Another cult that clearly doesn't follow the Bible they claim to believe in.

I wonder how the men in this group would feel about Proverbs 31 and the successful business woman it describes.

I can see O'Brien thinking about using the Death Note, followed by Keiko yelling "Miles!" at him and hence resigning himself to beam it into space.

I doubt any of the DS9 characters would end up with a god complex like Light does, but I agree with the other comments that Garak would probably get the most mileage out of it and come up with some very inventive ways of dispatching people. Sisko would probably work out that Garak had the Death Note, but never be able to prove it nor that he'd used it.

At least a tag I can fix.... A woollen jumper (aka woolen sweater for the US folks) is just a no-go. Too itchy.

Yeah, I didn't like that one either. I get enough politics elsewhere.

Congrats, I think you've successfully crafted an insult to both Pike and Biden at the same time.

Only problem is my battery usually starts off at 50%...

Check out Paint.NET. It is free and has some of the basic features of Photoshop.