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Self-experiment with L-theanine: effect on sleep and cognition

77 pointsby sheefrex8 months ago

15 comments

perihelion_zero8 months ago
Been mucking around with huge doses of B Vitamins (especially B3&#x2F;Niacin) and 5-HTP (a serotonin precursor). Both of those are rather, uh, effectful. 500mg+ Niacin will turn you red unless you&#x27;re actually deficient. And you do not want to mess with the 5-HTP and alcohol at the same time, plus 5-HTP can cause some nasty side effects in some people.<p>Seems like a nice way to have some weird dreams while probably improving my health (high dose B vitamins seem to do great things for mental disorder and the only apparent downside is colorful piss and possibly turning into a cherry).<p>For people who don&#x27;t do vita-drugs, there&#x27;s always tea, coffee, chocolate, and matcha.
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cfcf147 months ago
L-theanine (200mg) with around 100-150mg of caffeine has an extremely noticeable, positive effect on my ability to focus, feeling of &quot;well-situatedness&quot;, and overall calmness. L-theanine by itself doesn&#x27;t seem to do much. Caffeine on its own wakes me but makes me feel jittery and anxious, so it&#x27;s definitely an interaction effect. Taurine has a much smaller effect on calmness, sans interactions - often indistinguishable from any other mild focus exercise like box breathing or stretching.
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bagful8 months ago
For my biology, L-theanine (200 mg) rounds out caffeine by stamping out the anxiety-inducing effect. By itself it just gives me a headache sometimes.
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mentos8 months ago
I once was sitting at my desk and had this overwhelming calm come over me. I was trying to figure out what I had eaten that morning&#x2F;afternoon and then realized the 2-3 &#x27;Just Chill&#x27; sodas in my trash my mom had gotten me contained L-Theanine. Was a pretty blind test but I wasn&#x27;t able to reproduce it effectively with L-Theanine supplements I found on amazon.
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marmight8 months ago
I would have liked to have seen if there was any difference in the effects over time. I think it is easy to find something that helps with anxiety in the short term, but over enough time habituation, tolerance, and dependence can develop to most substances.
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binary1327 months ago
Anecdotally, my theanine use correlated strongly with my development of terrible chronic migraines which lasted years. But I was also experiencing severe stress during that time, so it could just be that. However, when I stopped taking L-theanine, my headaches did lessen in severity and frequency, so there may be something there and I’ve heard others mention headache in relation to it.
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huuhee38 months ago
I tried an L-theanine supplement for anxiety. It had a notable short-term effect, but when I was off it my anxiety significantly worsened. Got better once I stopped taking it, so I guess it was a dependency kind of thing.<p>So, I would say that it definitely has an impact. Perhaps it would have worked better with a smaller dose.
wslh8 months ago
It is great the author highlights that green tea already includes L-theanine where it is common to read about buying supplements.
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Havoc7 months ago
Tried it too a didn’t go well. No immediate effect and then after a couple of days experienced severe emotional fragility. That “about to burst into tears“ type feeling. Quickly dropped that stuff
ssebs8 months ago
I&#x27;ve taken L-theanine for anxiety before, and it seems to help. I&#x27;m not sure if it&#x27;s a placebo or not, but either way it seems to help
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_DeadFred_8 months ago
I don&#x27;t really notice a change when I take theanine but the times when I have taken it consistently I notice I stop biting my fingernails.<p>I just realized this week I haven&#x27;t been biting my nails and from this popping up thought about it, went and checked, and the new magnesium drops I started taking have theanine.
coreyh144447 months ago
Kindof softof related - I also &quot;discovered&quot; L-tyrosine effectively cured my Restless Leg Syndrome (RLS). The tl;dr version of that story is I used to take electrolytes for it and switched from the Heed brand regular version to the &quot;extreme&quot; version which didn&#x27;t do anything for RLS, compared the ingredients and L-Tyrosine was the key. For going on 15 years now I take it daily before bedtime and it is effective 98% of the time. Bottom line is these amino acids deserve more attention and research.
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jvans8 months ago
fitbits and similar are fine for measuring awake vs asleep but really terrible at breaking up the stages
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ulnarkressty8 months ago
&gt; This study was not blinded so there could be a placebo effect.<p>Saved you a click.
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oigursh8 months ago
gwern.net has entered the chat