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Showing posts older than #4891 · Back to latest

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Post #4890 274
A grad student’s wild idea sparks a major aging breakthrough
A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-15 12:50 GMT+8（北京时间）
ScienceDaily A grad student’s wild idea sparks a major aging breakthrough A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules called aptamers can selectively attach to senescent “zombie cells,” which are linked to…
Post #4889 240
A grad student’s wild idea sparks a major aging breakthrough
A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-15 12:50 GMT+8（北京时间）
ScienceDaily A grad student’s wild idea sparks a major aging breakthrough A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules called aptamers can selectively attach to senescent “zombie cells,” which are linked to…
Post #4888 230
A grad student’s wild idea sparks a major aging breakthrough
A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-15 12:50 GMT+8（北京时间）
ScienceDaily A grad student’s wild idea sparks a major aging breakthrough A casual conversation between graduate students helped spark a breakthrough in aging research at Mayo Clinic. Researchers discovered that tiny synthetic DNA molecules called aptamers can selectively attach to senescent “zombie cells,” which are linked to…
Post #4887 234
Scientists discover hidden math secret inside Chinese money plant leaves
Scientists have uncovered a hidden mathematical secret inside the leaves of the Chinese money plant: a naturally occurring geometric pattern known as a Voronoi diagra…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-14 15:48 GMT+8（北京时间）
ScienceDaily Scientists discover hidden math secret inside Chinese money plant leaves Scientists have uncovered a hidden mathematical secret inside the leaves of the Chinese money plant: a naturally occurring geometric pattern known as a Voronoi diagram, something typically associated with city planning, computer science, and network design.…
Post #4886 189
This daily habit could lower dementia risk by 35%, scientists say
A huge long-term study found that drinking two to three cups of coffee a day was linked to a much lower risk of dementia, especially before age 75. Researchers say ca…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-13 22:29 GMT+8（北京时间）
ScienceDaily This daily habit could lower dementia risk by 35%, scientists say A huge long-term study found that drinking two to three cups of coffee a day was linked to a much lower risk of dementia, especially before age 75. Researchers say caffeine may help keep brain cells active while reducing inflammation and harmful plaque buildup…
Post #4885 177
This daily habit could lower dementia risk by 35%, scientists say
A huge long-term study found that drinking two to three cups of coffee a day was linked to a much lower risk of dementia, especially before age 75. Researchers say ca…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-13 22:29 GMT+8（北京时间）
ScienceDaily This daily habit could lower dementia risk by 35%, scientists say A huge long-term study found that drinking two to three cups of coffee a day was linked to a much lower risk of dementia, especially before age 75. Researchers say caffeine may help keep brain cells active while reducing inflammation and harmful plaque buildup…
Post #4884 253
Scientists say this simple music trick can boost workout endurance by 20%
A new study shows that listening to your own favorite workout music can dramatically boost endurance. Cyclists exercising with self-selected songs lasted nearly 20% l…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-09 20:56 GMT+8（北京时间）
ScienceDaily Scientists say this simple music trick can boost workout endurance by 20% A new study shows that listening to your own favorite workout music can dramatically boost endurance. Cyclists exercising with self-selected songs lasted nearly 20% longer than when riding in silence, yet they didn’t feel more exhausted at the end. Researchers…
Post #4883 274
240-million-year-old giant “sand creeper” found hidden in retaining wall
A forgotten fossil hidden inside a garden wall has turned out to be one of Australia’s most remarkable prehistoric discoveries. Scientists have now identified the 240…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-06 14:47 GMT+8（北京时间）
ScienceDaily 240-million-year-old giant “sand creeper” found hidden in retaining wall A forgotten fossil hidden inside a garden wall has turned out to be one of Australia’s most remarkable prehistoric discoveries. Scientists have now identified the 240-million-year-old amphibian, Arenaerpeton supinatus, revealing an almost perfectly preserved…
Post #4882 239
麻省理工科学家揭示了高科技材料的神秘结构
研究人员首次在细节上详细地绘制了放松铁电材料的三维结构，揭示了纳米尺度上电荷的隐藏模式。该突破不仅挑战了这些材料行为的长期假设，还使科学家能够改进设计它们的模型。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 21:14 GMT+8（北京时间）
#放松铁电材料 #铁电材料 #纳米结构
ScienceDaily MIT scientists finally reveal the hidden structure of a mysterious high-tech material For decades, relaxor ferroelectrics have powered everything from medical ultrasounds to sonar systems, yet their inner atomic structure remained a mystery—until now. Researchers have finally mapped their three-dimensional structure in unprecedented detail…
Post #4881 246
科学家揭示肌力剂的真正力量：超越肌肉增强的创酮作用
肌力剂创酮在健身房中声名狼藉，但它的真实故事远比人们想象的更为复杂。身体内自然产生的创酮帮助细胞通过快速重生ATP来发动，ATP是肌肉、脑部和心脏在高强度活动时的动力来源。补充创酮可以提高短时间的身体性能，并且可能支持记忆、情绪和…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 16:13 GMT+8（北京时间）
#创酮 #肌力剂 #ATP #运动性能 #记忆力
ScienceDaily Scientists reveal creatine’s hidden power beyond muscle gains Creatine might be famous in the gym, but its real story is far more interesting. Naturally produced in the body, it helps power cells by rapidly regenerating ATP—the fuel that keeps muscles, the brain, and even the heart running during intense activity. Supplementing…
Post #4880 122
麻省理工科学家终于揭示了高科技材料的神秘结构
研究人员终于在细节上绘制了放电电解质的三维结构，揭示了纳米尺度上的电荷排列模式，这一突破不仅挑战了这些材料行为的长期假设，还使科学家能够改进设计它们的模型。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 21:14 GMT+8（北京时间）
#放电电解质 #纳米尺度 #材料结构
ScienceDaily MIT scientists finally reveal the hidden structure of a mysterious high-tech material For decades, relaxor ferroelectrics have powered everything from medical ultrasounds to sonar systems, yet their inner atomic structure remained a mystery—until now. Researchers have finally mapped their three-dimensional structure in unprecedented detail…
Post #4879 115
进化不是随机的。科学家发现，1200万年来同样的基因被用于蝴蝶和蛾的警告色彩中
研究人员发现，远亲的蝴蝶和蛾在1200万年里重复使用了同一 pair 的基因，产生了惊人的相似警告色彩。进化并没有改变基因本身，而是改变了它们的开关方式。这一发现暗示着生命可能比之前认为的更具预测性。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 13:09 GMT+8（北京时间）
#进化 #基因 #蝴蝶 #蛾 #警告色彩
ScienceDaily Evolution isn’t random. Scientists find the same genes used for 120 million years Evolution seems to follow a script more often than expected. Researchers found that distantly related butterflies and moths have reused the same pair of genes for over 120 million years to produce strikingly similar warning colors. Rather than altering the…
Post #4878 168
阿尔茨海默病药物可能无效并增加脑部风险
一项针对2万多名参与者的大规模回顾性研究发现，清除脑中β-淀粉样蛋白的药物可能并未对阿尔茨海默病患者产生任何实质性的帮助，甚至可能增加脑水肿和出血的风险，甚至可能无明显症状
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 13:42 GMT+8（北京时间）
#阿尔茨海默病 #β淀粉样蛋白 #药物治疗
ScienceDaily Alzheimer’s drugs may not work and could raise brain risks Drugs designed to clear amyloid beta from the brain—once seen as a promising path to slowing Alzheimer’s—may not actually help patients in any meaningful way, according to a major review of over 20,000 participants. Even more concerning, they may increase…
Post #4877 107
奥塞米特利单抗与抑郁和焦虑风险降低有关
研究发现GLP-1类药物奥塞米特利单抗（Ozempic）和韦格维（Wegovy）可降低抑郁和焦虑的风险，患者的精神病院就医率和病假天数明显降低。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 14:14 GMT+8（北京时间）
#奥塞米特利单抗 #韦格维 #GLP1类药物 #抑郁 #焦虑
ScienceDaily Weight loss drug Ozempic linked to lower depression and anxiety risk GLP-1 drugs like semaglutide—best known for treating diabetes and driving weight loss under the brand names Ozempic and Wegovy—may also deliver a surprising mental health boost. In a massive study tracking nearly 100,000 people over more than a decade, researchers…
Post #4876 125
老建筑中令人毛骨悚然的感觉可能有一个惊人的原因
研究发现，低于人类听觉范围的超低频振动（infrasound）可能会影响人们的情绪和身体反应，导致人们在老建筑中感到毛骨悚然，甚至可能解释为什么人们会在某些地方感到不适。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-03 23:27 GMT+8（北京时间）
#infrasound #超低频振动 #情绪 #身体反应
ScienceDaily The creepy feeling in old buildings might have a surprising cause A hidden force may be quietly shaping how you feel—and you’d never even know it. Infrasound, an ultra-low-frequency vibration below the range of human hearing, is everywhere from traffic to old buildings. In a small experiment, people exposed to it became…
Post #4875 104
疟疾不仅杀死了早期人类，还塑造了我们成为谁的形态
在人类迁徙到全球各地之前，一个致命疾病可能已经悄悄地影响了我们的祖先居住的地区——甚至影响了我们如何演化。新研究表明，疟疾不仅威胁到早期人类的存活；它还在非洲的数万年间推动了人口从高风险地区撤离，分散了群体。这种分离影响了不同…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 00:04 GMT+8（北京时间）
#疟疾 #人类演化 #基因多样性
ScienceDaily Malaria didn’t just kill early humans, it shaped who we became Long before humans spread across the globe, a deadly disease may have quietly shaped where our ancestors lived—and even how we evolved. New research reveals that malaria didn’t just threaten early human survival; it actively pushed populations away from high…
Post #4874 97
研究人员揭示咖啡对肠道和大脑的真正作用
研究人员发现，咖啡不仅能给人带来能量，还能改变肠道菌群，进而影响情绪和压力水平。脱咖啡因咖啡甚至可以改善学习和记忆能力，而咖啡因则可以提高专注力并降低焦虑。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-04 00:18 GMT+8（北京时间）
#咖啡 #肠道菌群 #大脑 #情绪 #压力
ScienceDaily Scientists just discovered what coffee is really doing to your gut and brain Coffee doesn’t just energize—it actively reshapes the gut and mind. Researchers found that both caffeinated and decaf coffee altered gut bacteria in ways linked to better mood and lower stress. Decaf even improved learning and memory, while caffeine boosted…
Post #4873 108
科学家震惊：粉色蝉变身绿色伪装
科学家在巴拿马发现了一种奇怪的雨林昆虫，它的颜色从粉红色变成绿色，仅仅11天，完全模仿了热带叶子的发育过程。这种昆虫的颜色变化似乎是一种生存策略，帮助它在其周围环境的变化中融入其中。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-03 11:12 GMT+8（北京时间）
#科学 #生物 #昆虫 #伪装 #生存策略
ScienceDaily Scientists stunned as pink katydid transforms into green camouflage A bizarre rainforest insect is rewriting what scientists thought they knew about camouflage. A katydid spotted glowing hot pink in Panama stunned researchers when it slowly transformed into green in just 11 days, perfectly mirroring the life cycle of tropical…
Post #4872 103
你是否真正记得？物理学家重新审视布尔特曼脑谜团
一项新分析指出，布尔特曼脑悖论可能意味着我们的记忆和现实感实际上是由宇宙混沌产生的随机错觉。通过揭示物理学家如何思考时间和熵的循环推理，这项研究再次引发了人们对过去真相的怀疑。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-03 19:47 GMT+8（北京时间）
#布尔特曼脑 #物理学 #时间 #熵 #记忆
ScienceDaily Are your memories real? Physicists revisit the Boltzmann brain paradox A new analysis of the “Boltzmann brain” paradox suggests our memories and sense of reality could, in theory, be random illusions born from cosmic chaos. By uncovering circular reasoning in how physicists think about time and entropy, the study raises fresh…
Post #4871 111
Scientists found the brain doesn’t start blank, it starts full
The brain’s memory center may begin life more like a crowded web than an empty canvas. Researchers discovered that early neural networks in the hippocampus are dense …
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-05-03 20:50 GMT+8（北京时间）
ScienceDaily Scientists found the brain doesn’t start blank, it starts full The brain’s memory center may begin life more like a crowded web than an empty canvas. Researchers discovered that early neural networks in the hippocampus are dense and seemingly random, then become more organized by shedding connections over time. This…
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