Does being in a caloric deficit decrease the rate at which neurological pathways are formed and/or strengthened? |
- Does being in a caloric deficit decrease the rate at which neurological pathways are formed and/or strengthened?
- AskScience AMA Series: We are vaccination experts Dr. H Cody Meissner and Dr. Sean Palfrey, here to answer anything about vaccines with the help of the Endless Thread podcast team! AUA!
- Do female to male sex reassignment patients choose their penis's size? If not what defines it?
- How are movie files not huge? (Assuming the following calculations)
- How do the various vaccinations we get affect the gut micro-biome?
- What's the reason behind lowering of immunity when a patient is diabetic?
- Would spent nuclear fuel in a dry storage cask reach criticality if the neutron absorbers were removed?
- What keeps the planets' core molten?
- Did the apollo astronauts breath 100% O2 during the travel to the moon?
- How do we know the age of a species?
- Flesh eating bacteria on the rise??
- To what extent does the body compensate for taking a supplement (vitamin, SSRI, etc.) by producing less of that substance endogenously? (during or after supplement use)
- How exactly does depression cause or increase hypersomnia (Excessive Sleep) in those with the condition?
- What part of your brain controls your aim while peeing?
- Why is fire hot?
- Do general anesthetics target a specific brain region or neuronal circuit?
- How did researchers find out that we need sunlight to produce Vitamin D?
- Why does eyebrow hair grow back when shaved but yet it remains the same length for our whole lives if we don’t ever cut it? What tells the hair to stop growing?
- What percent of sea turtle hatchlings actually make it to the ocean?
- Will/Can a carnivore eat plants if starving?
| Posted: 22 Jul 2019 06:05 PM PDT What is more important for the development of neurons under normal conditions? Macronutrients or micronutrients? If being in a caloric/macronutrient deficit has a negative impact on neurological processes, does meeting your micronutrient requirements minimize that impact? How does being in a caloric deficit affect the atrophy of neurons prone to atrophy? Finally, what are the most important factors for the optimal function of neurological processes? Thanks in advance. [link] [comments]  |
| Posted: 23 Jul 2019 04:01 AM PDT As two doctors with decades of experience working to fight infectious disease, we want to help people understand the benefits of vaccines and getting vaccinated. We're taking a brief pause from our work to answer your questions, and if you've got questions for the Endless Thread podcast team and their series on vaccines and anti-vaxxers, "Infectious," they're here with us! You can find our bios and information about the live event we're doing in Boston this Thursday, find it here. We'll be starting at 1pm ET (17 UT), AUA! [link] [comments]  |
| Do female to male sex reassignment patients choose their penis's size? If not what defines it? Posted: 23 Jul 2019 01:25 AM PDT |
| How are movie files not huge? (Assuming the following calculations) Posted: 23 Jul 2019 03:17 AM PDT Assuming a standard movie is 90 minutes. With a resolution of 1920 x 1080, 24 fps, and true 16.8 million colour range i come to the following conclusion: Every pixel needs 3 values. RGB, from 0 to 255 (8 bit). So every pixel needs 24 bits. So every frame needs 1920 x 1080 x 24 bits = 49766400 bits. Times by 24 frames per second = 1194393600 bits per second. 90 minutes is 5400 seconds. 1194393600 x 5400 is 6449725440000 bits per movie. Which is 806Gb per movie. Obviously not right. How can this be compressed so much to ~1Gb per film. The only thing i can assume is that if a pixel is not going to change at all, it doesn't need to store a value for that pixel. Alternatively maybe it saves a less detailed colour range knowing it will be adequate for viewing. I understand compression exists, but how it works to this kind of measure. Not a clue. [link] [comments]  |
| How do the various vaccinations we get affect the gut micro-biome? Posted: 23 Jul 2019 07:17 AM PDT |
| What's the reason behind lowering of immunity when a patient is diabetic? Posted: 23 Jul 2019 07:17 AM PDT |
| Posted: 23 Jul 2019 04:13 AM PDT As you can see in this photo Dry cask being loaded underwater spent fuel assemblies are packed very close together. Would the spent fuel reach criticality if the neutron absorbers lining the individual baskets (separating each fuel assembly) were removed? Or has the fuel been burnt up so much that it's not very reactive anymore, even when it's jammed together right next to another fuel assembly. I ask this question because I was really surprised by how close they are to each other. [link] [comments]  |
| What keeps the planets' core molten? Posted: 22 Jul 2019 01:05 PM PDT As earth ages, will the core eventually freeze? What keeps it from solidifying over time? [link] [comments]  |
| Did the apollo astronauts breath 100% O2 during the travel to the moon? Posted: 22 Jul 2019 12:59 PM PDT Hello all, With the 50th anniversary of the Apollo mission a question came up. What did the Apollo astronauts breath while traveling to the moon? I have read many places that say they had 100% O2 at 5PSI in the cabin, but this seems wrong to me. The reason I feel this is wrong is because if you are 100% O2 for that long you get O2 toxicity. based off.. the Lorrain-Smith effect and the Paul-Bert Effect. I cant find anything about what they had during the flight to the moon. The closest I have found is that they launched with a 1:4 mix, and bleed out the capsule to pure O2 at 5psi. but again, to my knowledge the human body can not survive that. If anyone know where I can get more concrete answers let me know. [link] [comments]  |
| How do we know the age of a species? Posted: 22 Jul 2019 02:50 PM PDT I've read that sharks have remained relatively unchanged for millions of years - and I suppose we can tell by looking at very old skeletons. But then I watched Planey Eartg, and one species of larvae that also was millions of years old - this time supposedly without skeletal remains. How do we know how old a species is without looking at for example skeltons or bugs stuck in amber? [link] [comments]  |
| Flesh eating bacteria on the rise?? Posted: 22 Jul 2019 09:37 AM PDT Not sure if this is the right flair to use Does anyone have any scientific explanation as to why this flesh eating disease (necrotizing fasciitis) is on the rise? I have heard of cases here and there over the years, but it seems like lately you hear of a new case everyday and it is seemingly on the rise. As someone who likes to spend time in the water I now feel like beaches, rivers or lakes aren't safe. Anyone have any idea? [link] [comments]  |
| Posted: 22 Jul 2019 09:13 AM PDT I've been told (perhaps wrongly?) that taking an SSRI for extended periods of time might in the long run make your body produce less serotonin endogenously (perhaps just temporarily). I've also been told similar things about oil in the hair or on the skin/face (something like: removing oil or drying it a lot might make your body produce *more*, etc.). I know the body does have a lot of mechanisms for maintaining homeostasis, so it makes *intuitive* sense that if it has more-than-usual of something, it might change to produce less of that thing in the future; but I don't know if such mechanisms actually exist for the kinds of things people claim. (And I know usually there are multiple mechanisms at play and it's likely more complicated than any intuitive or simple explanation). So my question is basically: if I take, say, a daily vitamin supplement (e.g., very large dose of Vit D or Vit B12), could that have the effect of making my body produce less endogenously? If I stop taking those after a year of daily ingestion, will my body end up producing less than it was prior to supplementation? And does the same thing apply for medication like a neurotransmitter agonist or antagonist? [link] [comments]  |
| Posted: 22 Jul 2019 01:38 PM PDT I was looking to understand what about depression causes the balance to shift to encourage more hypersomnia and encourage the sleep state, specifically what physiological changes occur at the cellular level to cause this. Alternatively, I know that in some cases of depression insomnia is more prevalent so I suppose an additional question would be what determines which way the shift occurs - to encourage hypersomnia vs insomnia. I am a physiology student and I do have some background from how sleep works on a physiological level from several courses I took in university. I understand how we have both wake and sleep centers in the brain and that particular neurotransmitters either encourage or discourage fatigue via a sleep-wake switch. [link] [comments]  |
| What part of your brain controls your aim while peeing? Posted: 22 Jul 2019 09:02 AM PDT |
| Posted: 22 Jul 2019 03:52 AM PDT Is it the stored energy between the bonds and the "fire" is ripping the bonds apart? So then how does that work for gas. If you were burning O2 would the fire break it down to 2 Os? And if that's the case would fire be able to burn just O. I was wondering this because I was cooking and I was wondering where all that gas went. And what it became after it was burnt. Or does it straight up become energy (the heat that you feel) [link] [comments]  |
| Do general anesthetics target a specific brain region or neuronal circuit? Posted: 22 Jul 2019 01:30 PM PDT I understand that general anesthetics in most cases either increase GABAA activity or block NMDA channels (in the case of ketamine). But I can't find an article that talks about where they target in the CNS. Obviously, exciting inhibitory neurons in different areas leads to different effects. Do general anesthetics target specific circuits or regions, or do they affect the brain globally? In that case how do they have selective functions (ie not messing with your vitals). Please correct me, as I'm more of a cog psych person than bio. [link] [comments]  |
| How did researchers find out that we need sunlight to produce Vitamin D? Posted: 22 Jul 2019 09:31 AM PDT The synthesis of Vitamin D requires UV rays reaching the skin, but how did researchers discover this? [link] [comments]  |
| Posted: 22 Jul 2019 06:59 AM PDT |
| What percent of sea turtle hatchlings actually make it to the ocean? Posted: 22 Jul 2019 09:38 AM PDT I always see videos of turtles being born and then they proceed to race to the ocean. The whole time they're under attack by a variety of predators, it seems like over half never make it to the ocean. While I'm sure the location of birth plays a role, I wonder if there's a rough percentage or explanation for how many even make it to the ocean in the first place. Its sad thinking they dash through all of those predators only to choke on a straw too. Thanks [link] [comments]  |
| Will/Can a carnivore eat plants if starving? Posted: 22 Jul 2019 06:24 AM PDT Not talking about omnivores like bears but instead strict carnivores. Same for herbivores. [link] [comments]  |
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