Score
Title
48
Science AMA Series: We are Professor Tim Lenton and Dr Damien Mansell from the University of Exeter, here to answer your questions on Solutions to Climate Change. AMA!
34
Science AMA Series: I’m Albert Lau and I use supercomputers to simulate molecular machines in action, such as those in the brain. My research can help scientists understand how small molecules like neurotransmitters locate their targets. AMA!
34673
People with more wealth tend to report being happier with life, according to a new psychological study of more than 4,000 millionaires. The study also found evidence that millionaires who earned their wealth were happier than those who inherited it.
313
Infection outbreaks at hospitals could be reduced by copper-coated uniforms - Doctors, nurses and healthcare professionals could soon be wearing uniforms brushed with tiny copper nanoparticles to reduce the spread of bacterial infections and viruses at hospitals.
804
New blood test can detect autism in children. Researchers at the University of Warwick discover link between autism and damage to proteins in blood plasma.
7580
AAAS AMA: Hi, we’re researchers from Google, Microsoft, and Facebook who study Artificial Intelligence. Ask us anything!
25
A new study finds that farming crops with crushed rocks could help to improve global food security and reduce the amount of CO2 entering the atmosphere. The fast-reacting silicate rocks capture CO2 and give increased protection from pests and diseases while restoring soil structure and fertility.
6535
Teens work very hard to create a favorable online image through careful selection of which photos, activities and links to post on Facebook and Instagram, according to a recent study. Content that makes them appear interesting, well-liked and attractive to their friends and peers is a primary goal.
21
Archeologists find mutilated 8,000-year-old skulls, some possibly mounted on stakes. While plenty of cultures throughout the world have placed skulls on stakes, either as trophies or a “back off” signal to enemies, this would be the earliest known example found in Europe.
41
Our knowledge of dinosaur evolution has completely changed in the last 10 years, and likely will in the next 10 again too.
3019
Did humans domesticate themselves? Human ‘self-domestication’ is a hypothesis that states that among the driving forces of human evolution, humans selected their companions depending on who had a more pro-social behavior. Researchers found out new genetic evidence for this evolutionary process.
20
Study dispels notion that social media displaces human contact - A new study shows no evidence for the proposition that social media crowds out face-to-face communication with those who ought to matter most, our close friends and family members, debunking the social displacement hypothesis.
14
Franzmeier et al. show that greater left frontal hub connectivity within the fronto-parietal control network is associated with greater resilience of cognitive performance during early stages of autosomal dominant & sporadic Alzheimer’s disease.
10
Unconventional superconductor may be used to create quantum computers of the future
52
Global Demand for Natural Resources Eliminated More Than 100,000 Bornean Orangutans Between 1999 and 2015
10
Air Pollution from New and Shutdown Industries, a Big Danger to Public Health
131
Humans will actually react pretty well to news of alien life. Across multiple studies, researchers found that reactions were significantly more positive than negative, and more reward vs. risk oriented.
416
AAAS AMA: Hi, we're scientists from NOAA and research universities who analyze the sources of pollution and recently published a study in Science Magazine. Ask us anything!
7
Dispersal of Fish Eggs by Water Birds – Just a Myth?
2
CRISPR hack transform?s cells into data recorders
10
A team of international researches finds that Oganesson doesn't behave like other noble gasses.
10
Making gene editing more precise
8
Learning Plants (Pavlov for Peas)
48
New studies zero in on roots of depression and why ketamine reverses it
1
New research on English Football suggests darker skin toned soccer players occupy positions thought to require athleticism whereas lighter skin toned players occupy positions requiring creativity and organizational skills
12
Induced Pluripotent Stem Cell Based Vaccines Elicit Anti-tumor Responses In Vivo
6934
Peanut oral immunotherapy strongly desensitizes children and young adults to peanut allergy in a randomized, phase 2 trial. Results from a phase 3 trial are expected imminently.
7
Raw chicken link to dog paralysis: Investigation of the Role of Campylobacter Infection in Suspected Acute Polyradiculoneuritis in Dogs
2
Rescue of Fragile X Syndrome Neurons by DNA Methylation Editing of the FMR1 Gene
9
Glacigenic sedimentation pulses triggered post-glacial gas hydrate dissociation
7644
Hi, we’re scientists who are scouring the night sky for exoplanets, and then trying to determine if any might reside in the “habitable zones” of their stars. Ask us anything!
8516
Like the horse of Troy, scientists have developed a way to sneak synthetic cells right into tumor tissue, where they then begin producing cancer-fighting proteins from the inside. The technique was tested in both cell cultures and in mice, and found to be an effective treatment in both cases.
49
Researchers have developed a printing technique using cells and molecules normally found in natural tissues to create constructs that resemble biological structures, embedded in an ink similar to their native environment, that mimic body parts for tissue engineering or regenerative medicine.
312
A strip of paper can now indicate presence of pathogens, tumor DNA or any genetic signature of interest. 100-fold greater sensitivity, the ability to detect multiple targets at once, and other new features further enhance SHERLOCK's power for detecting genetic signatures- Broad institute, Harvard
275
"Our models indicate that between 1999 and 2015, half of the orangutan population (~100,000) was affected by logging, deforestation, or industrialized plantations. Although land clearance caused the most dramatic rates of decline, it accounted for only a small proportion of the total loss."
1091
Women who work as cleaners or regularly use cleaning sprays or other cleaning products at home appear to experience a greater decline in lung function over time than women who do not clean, according to new research published in the American Journal of Respiratory and Critical Care Medicine.
16573
Scientists Create a New Form of Light by Linking Photons. Photons typically don’t interact, but physicists bound three together in the lab. This new form of light could someday be used to build light crystals that could lead to intriguing new ways of communicating and computing
66
Study shows hormone ghrelin affects exercise endurance, food intake post-workout
254
System draws power from daily temperature swings - Technology developed at MIT can harness temperature fluctuations of many kinds to produce electricity, as reported in Nature Communications.
25
Babies can spot language, even when it’s not spoken
28063
A free ride with Lyft didn't reduce the number of skipped doctor's appointments among Philly's Medicaid population, according to a study from UPenn. Further, just 85 of 288 people who answered reminder phone calls accepted the rides in the first place.
8221
73% of fish in northwest Atlantic have microplastics in their gut
1 Doomhammer458 Science AMAs are posted early to give readers a chance to ask questions and vote on the questions of others before the AMA starts. Guests of /r/science have volunteered to answer questions; please treat them with due respect. Comment rules will be strictly enforced, and uncivil or rude behavior will result in a loss of privileges in /r/science. If you have scientific expertise, please verify this with our moderators by getting your account flaired with the appropriate title. Instructions for obtaining flair are here: [reddit Science Flair Instructions](http://www.reddit.com/r/science/wiki/flair) (Flair is automatically synced with /r/EverythingScience as well.)
8 SirT6 To what extent does the source of the sugar matter in terms of how it impacts neuronal plasticity and other behavioral traits related to addiction? It looks like in your study, you supplied the rats with 5% sucrose laden drinking water. Do you think you would have seen similar results if the rats had been fed a fruit-based diet that is high in sucrose. Also, I am having a hard time understanding exactly how sugary 5% sucrose water would be. What is the sucrose content of a soda, for example, by comparison?
3 redditWinnower This AMA is being permanently archived by *The Winnower*, a publishing platform that offers traditional scholarly publishing tools to traditional *and* non-traditional scholarly outputs—because scholarly communication doesn’t just happen in journals. To cite this AMA please use: [https://doi.org/10.15200/winn.150531.10661](https://www.thewinnower.com/papers/7608-plos-science-wednesday-hi-reddit-we-re-selena-and-arnauld-and-our-research-shows-short-and-long-term-sugar-consumption-can-alter-the-reward-circuits-of-the-brain-that-are-associated-with-addiction-ask-us-anything) You can learn more and start contributing at [*authorea.com*](https://authorea.com)
4 postdochell What about non-caloric sweeteners? It it simply the sensory experience of "sweet" or does it also require a caloric component?
3 divvyflax Regarding your study itself, I'm curious to hear a bit about your choice to use adolescent rats. Is this effect likely to be any different at different developmental stages? More generally, I'd be interested to know how you approach sugar consumption in your day-to-day life. It's certainly more ubiquitous that alcohol.
3 forgetremembering Would there be any merit to testing the sucrose solution with a soluble fiber like inulin to measure if the presence of an indigestible carbohydrate in any way mitigates the effect the fructose has on the brain?
2 PHealthy Hi and thanks for joining us today! This may be quite a reach but with countries implementing sugar taxes and seeing lowered consumption levels, do you think we might also see a correlated uptick in depression and suicide?
2 VoidsIncision Can these changes be reversed by ceasing or reducing consumption? Would the brain try and replace the "soothing" with something else until the underlying traumas are dealt with?
2 ombwtk 1) What is the threshold for overconsumption? 2) Does the packaging seem to matter (e.g. fruit vs fruit juice vs candy)? 3) Could you briefly explain what lead you to your hypothesis? Is it that sugar and alcohol cause similar reactions in the brain when ingested and so you project that sugar will have similar long-term consequences? 4) Do you know if any other component of a macronutrient has been analysed like this? If so, how did it compare to sugar? Thanks!
1 lucaxx85 Hi there! I'll ask what I think is the most obvious follow up question. Do you think that this similarity between sugar and alcohol is due to some specific biochemical similarity in the substances or because of similarities in the addiction mechanism, which can involve many addictions, even unrelated to "drugs" (e.g.: problematic gamblic).
1 6thGenTexan Wasn't there research being done on obese people and the number of sweet taste receptors on their tongues? I've known some morbidly obese people that seemed to get more of a kick from sugar than is normal. I agree with your hypothesis about sugar and alcohol. I think alcoholism is really an eating disorder and can be treated as such. I know from personal experience that if one eliminates sugar from their diet, you will stop craving sweets. I have also noticed that a high protein snack alleviates cravings for sugar. What could be the mechanism for this?
1 PLOSScienceWednesday Thank you- Please send us links to these studies- I would love to read them also.
1 0 Doomhammer458 Science AMAs are posted early to give readers a chance to ask questions and vote on the questions of others before the AMA starts. Guests of /r/science have volunteered to answer questions; please treat them with due respect. Comment rules will be strictly enforced, and uncivil or rude behavior will result in a loss of privileges in /r/science. If you have scientific expertise, please verify this with our moderators by getting your account flaired with the appropriate title. Instructions for obtaining flair are here: [reddit Science Flair Instructions](http://www.reddit.com/r/science/wiki/flair) (Flair is automatically synced with /r/EverythingScience as well.)
7 0 SirT6 To what extent does the source of the sugar matter in terms of how it impacts neuronal plasticity and other behavioral traits related to addiction? It looks like in your study, you supplied the rats with 5% sucrose laden drinking water. Do you think you would have seen similar results if the rats had been fed a fruit-based diet that is high in sucrose. Also, I am having a hard time understanding exactly how sugary 5% sucrose water would be. What is the sucrose content of a soda, for example, by comparison?
4 0 redditWinnower This AMA is being permanently archived by *The Winnower*, a publishing platform that offers traditional scholarly publishing tools to traditional *and* non-traditional scholarly outputs—because scholarly communication doesn’t just happen in journals. To cite this AMA please use: [https://doi.org/10.15200/winn.150531.10661](https://www.thewinnower.com/papers/7608-plos-science-wednesday-hi-reddit-we-re-selena-and-arnauld-and-our-research-shows-short-and-long-term-sugar-consumption-can-alter-the-reward-circuits-of-the-brain-that-are-associated-with-addiction-ask-us-anything) You can learn more and start contributing at [*authorea.com*](https://authorea.com)
4 0 postdochell What about non-caloric sweeteners? It it simply the sensory experience of "sweet" or does it also require a caloric component?
3 0 divvyflax Regarding your study itself, I'm curious to hear a bit about your choice to use adolescent rats. Is this effect likely to be any different at different developmental stages? More generally, I'd be interested to know how you approach sugar consumption in your day-to-day life. It's certainly more ubiquitous that alcohol.
3 0 forgetremembering Would there be any merit to testing the sucrose solution with a soluble fiber like inulin to measure if the presence of an indigestible carbohydrate in any way mitigates the effect the fructose has on the brain?
2 0 PHealthy Hi and thanks for joining us today! This may be quite a reach but with countries implementing sugar taxes and seeing lowered consumption levels, do you think we might also see a correlated uptick in depression and suicide?
2 0 VoidsIncision Can these changes be reversed by ceasing or reducing consumption? Would the brain try and replace the "soothing" with something else until the underlying traumas are dealt with?
2 0 ombwtk 1) What is the threshold for overconsumption? 2) Does the packaging seem to matter (e.g. fruit vs fruit juice vs candy)? 3) Could you briefly explain what lead you to your hypothesis? Is it that sugar and alcohol cause similar reactions in the brain when ingested and so you project that sugar will have similar long-term consequences? 4) Do you know if any other component of a macronutrient has been analysed like this? If so, how did it compare to sugar? Thanks!
1 0 lucaxx85 Hi there! I'll ask what I think is the most obvious follow up question. Do you think that this similarity between sugar and alcohol is due to some specific biochemical similarity in the substances or because of similarities in the addiction mechanism, which can involve many addictions, even unrelated to "drugs" (e.g.: problematic gamblic).
1 0 6thGenTexan Wasn't there research being done on obese people and the number of sweet taste receptors on their tongues? I've known some morbidly obese people that seemed to get more of a kick from sugar than is normal. I agree with your hypothesis about sugar and alcohol. I think alcoholism is really an eating disorder and can be treated as such. I know from personal experience that if one eliminates sugar from their diet, you will stop craving sweets. I have also noticed that a high protein snack alleviates cravings for sugar. What could be the mechanism for this?
1 0 PLOSScienceWednesday Thank you- Please send us links to these studies- I would love to read them also.