What does "the brain finishes developing at 25" really mean? |
- What does "the brain finishes developing at 25" really mean?
- Ask Anything Wednesday - Engineering, Mathematics, Computer Science
- Why is titanium dioxide used in supplements?
- How does calcium overload lead to cell death (e.g. neurons)?
- Why do RBC's get bigger or smaller depending on whether Vitamin B12 or Iron is deficient?
- Do birds like Flamingos that don't have quill knobs (but still have feathers) have some other structures that indicate the presence of feathers?
- Does air density change based on temperatures?
- Is DLCO affected by changes in perfusion?
- If a baby was removed with the umbilical cord and placenta intact and somehow kept it from going bad - could the born baby absorb oxygen from water through the placenta - being able to breathe underwater?
- Are there any extremophiles that could survive on somewhere like titan?
- Is creatinine kinase included in total protein levels?
- What is happening is physiologically happening in the brain when a person experiences brain zaps?
| What does "the brain finishes developing at 25" really mean? Posted: 29 Jun 2022 03:38 AM PDT This seems to be the latest scientific fact that the general population has latched onto and I get pretty skeptical when that happens. It seems like it could be the new "left-brain, right-brain" or "we only use 10% of our brains" myth. I don't doubt that there's truth to the statement but what does it actually mean for our development and how impactful is it to our lives? Are we effectively children until then? [link] [comments] |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 29 Jun 2022 07:00 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments] |
| Why is titanium dioxide used in supplements? Posted: 29 Jun 2022 04:16 AM PDT What other purposes would Titanium dioxide serve in a supplement other than colour enhancement/ whitener? [link] [comments] |
| How does calcium overload lead to cell death (e.g. neurons)? Posted: 29 Jun 2022 03:13 AM PDT |
| Why do RBC's get bigger or smaller depending on whether Vitamin B12 or Iron is deficient? Posted: 29 Jun 2022 03:19 AM PDT I have studied that in Vitamin B12 deficiency, there is macrocytic (big celled) RBC production, whereas when there is a lack of iron, there is a microcytic (small celled) RBC production. I know that vitamin B12 is required for DNA synthesis, and iron is required as a part of the heme group of hemoglobin, but why do the deficiencies have such different outcomes? [link] [comments] |
| Posted: 29 Jun 2022 05:53 AM PDT If a group of people, who don't know anything about this bird, were to find its bones then how would they determine whether it had feathers or not??? [link] [comments] |
| Does air density change based on temperatures? Posted: 28 Jun 2022 09:27 PM PDT In Baseball, it is commonly stated that the ball will travel more (distance) once the weather warms up. My curiosity is if that 1. Is actually true 2. Does having an enclosed stadium with a roof and controlled environment change this factor? [link] [comments] |
| Is DLCO affected by changes in perfusion? Posted: 29 Jun 2022 04:58 AM PDT I am a medical student and I am currently going through pulmonary physiology. I understand the concepts of diffusion and perfusion-limited gases, but there is one point in my physiology textbook which I cannot seem to understand. When discussing DLCO, the textbook states that CO is a diffusion-limited gas. It then goes on to discuss the effects of changes in flow (Q) on DLCO and how doubling or halving flow does not impact DLCO, supporting that it is a diffusion not perfusion-limited gas. But I do not get why changing Q would not affect DLCO. Here is my take on it: Arterial CO pressure does not equilibrate with alveolar CO pressure by the end of the pulmonary capillary (i.e., diffusion-limited), but it still does rise slightly to some value lower than that of the alveoli. So wouldn't increasing flow decrease contact time and thus cause an even lower arterial CO pressure throughout the pulmonary capillary and thus the gradient for CO diffusion would be greater than at lower flow rates? And therefore, a higher DLCO? In support of my understanding, increased DLCO can be observed in obesity and is attributed to increased pulmonary blood flow in these patients. Noteworthy to mention, the textbook does assume that pulmonary capillary dimensions are constant with changing flow. But still, I do not believe this would make the above reasoning false. Thank you in advance! [link] [comments] |
| Posted: 29 Jun 2022 04:07 AM PDT |
| Are there any extremophiles that could survive on somewhere like titan? Posted: 29 Jun 2022 01:09 AM PDT And if they were to survive given enough time would that lead to the developing of extremely diverse and complex life such as the ones found here on earth? [link] [comments] |
| Is creatinine kinase included in total protein levels? Posted: 28 Jun 2022 09:22 PM PDT pathology question: I was wondering whether or not high CK would cause a high total protein or if total protein doesn't include CK. [link] [comments] |
| What is happening is physiologically happening in the brain when a person experiences brain zaps? Posted: 28 Jun 2022 03:05 PM PDT |
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