Since when decreasing brain blood flow is good?
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LSD, coffee, chocolate, magic mushrooms, nicotine are all vasoconstrictors.
Maybe the good feeling is because our brain sees it as poison?
Serotonin increases vasoconstriction, and in my experience, microdosing LSD, besides some positives, the next day I always get a headache and I am not the kind of guy prone to them.
Sleep deprivation also decreases brain blood flow, thus dopamine increases as a backup, but sleeping long enough is always better.Does anyone have anecdotes of periods of no drugs at all? no smoking no coffee
I'm thinking about giving up all to see how I feel.
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@Androsclerozat enough co2 production makes the vasoconstriction negligible IMO
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@Androsclerozat said in Since when decreasing brain blood flow is good?:
Does anyone have anecdotes of periods of no drugs at all? no smoking no coffee
Anytime I've taken a break from caffeine I usually got headaches, became tired, more unhappy. I don't think I've gone more than a week continuously without coffee or tea.
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@Corngold maybe you were experiencing withdrawal
What about a month without. I'm pretty sure it improves -
Their vascular effect is a bit more complex than than that. And even if it weren't, vasconstriction doesn't necessarily imply a decrease in blood flow. It's a relative phenomenon. Blood composition has a bearing on viscosity for example. Then there's cardiac output, a can of worms (no offence to the designer).
If you want a reason to take blinkers off your conscious, you can find a better one than this. Or just go for it.
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@Androsclerozat said in Since when decreasing brain blood flow is good?:
What about a month without. I'm pretty sure it improves
you should try it. I've never taken that long of a break from any caffeine so I don't know. regular coffee drinking shouldn't be "shocking" the system though, since the body's used to it. just like no coffee should introduce a new "norm" in the absence of regular caffeine.
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Ray Peat spoke about the supposed decrease of "blood flow" from caffeine as a decrease in the amount of stagnant blood in the brain. If blood flow was truly reduced, it would not also increase oxygen consumption in the way that it does (so it goes).
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I asked my go to bot this question.
User: does coffee decrease blood flow to the brain
Peatbot.com: No, coffee does not decrease blood flow to the brain. In fact, caffeine, a component of coffee, has been shown to increase blood volume in the brain while decreasing the resistance of the blood vessels. This effect is consistent with caffeine's stimulation of brain metabolism and the consequent increase in carbon dioxide, which dilates blood vessels. Therefore, coffee actually improves circulation to the brain.
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@Rah1woot said in Since when decreasing brain blood flow is good?:
If blood flow was truly reduced, it would not also increase oxygen consumption in the way that it does (so it goes).
This is helpful, because when reading about oxygen deprivation, that's tied to pain and stress instead of vasoconstriction, though the two are similar.