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生物医学科技前线

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看看这世界生物医学科学又进步了多少？
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Showing posts older than #4971 · Back to latest

Older Posts 20 shown
Post #4970 154
3 minutes of sprinting does something 90 minutes of exercise does not
A few minutes of sprinting may reshape the bloodstream far more dramatically than a much longer moderate workout. Six 30-second sprints altered nearly a quarter of th…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-08-21 20:17 GMT+8（北京时间）
ScienceDaily 3 minutes of sprinting does something 90 minutes of exercise does not A few minutes of sprinting may reshape the bloodstream far more dramatically than a much longer moderate workout. Six 30-second sprints altered nearly a quarter of the blood proteins measured and more than 200 metabolites, while 90 minutes of moderate cycling…
Post #4969 184
Animals have been eating nature’s original bioplastic for millions of years
Nature invented biodegradable plastic long before humans did—and animals may have been feeding on it for hundreds of millions of years. Researchers discovered that do…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-08-17 13:34 GMT+8（北京时间）
ScienceDaily Animals have been eating nature’s original bioplastic for millions of years Nature invented biodegradable plastic long before humans did—and animals may have been feeding on it for hundreds of millions of years. Researchers discovered that dozens of animal species possess enzymes capable of breaking down microbial bioplastics called…
Post #4968 145
Scientists tracked kids for 8 years — the screen time result was unexpected
An eight-year Finnish study found that children who spent more time on screens tended to show better cognitive processing as teenagers, challenging common assumptions…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-08-17 14:41 GMT+8（北京时间）
ScienceDaily Scientists tracked kids for 8 years — the screen time result was unexpected An eight-year Finnish study found that children who spent more time on screens tended to show better cognitive processing as teenagers, challenging common assumptions about screen use. Researchers say the key may be balancing physical activity with screen…
Post #4967 181
Frequent cannabis users wake up with their “stress hormone” already elevated
Frequent cannabis users may wake up with unusually high levels of the stress hormone cortisol, suggesting their daily stress rhythms could be disrupted. Researchers s…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-08-09 20:40 GMT+8（北京时间）
ScienceDaily Frequent cannabis users wake up with their “stress hormone” already elevated Frequent cannabis users may wake up with unusually high levels of the stress hormone cortisol, suggesting their daily stress rhythms could be disrupted. Researchers say the finding raises questions about whether using cannabis for stress relief might, over…
Post #4966 159
Frequent cannabis users wake up with their “stress hormone” already elevated
Frequent cannabis users may wake up with unusually high levels of the stress hormone cortisol, suggesting their daily stress rhythms could be disrupted. Researchers s…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-08-09 20:40 GMT+8（北京时间）
ScienceDaily Frequent cannabis users wake up with their “stress hormone” already elevated Frequent cannabis users may wake up with unusually high levels of the stress hormone cortisol, suggesting their daily stress rhythms could be disrupted. Researchers say the finding raises questions about whether using cannabis for stress relief might, over…
Post #4965 252
Scientists find a simple way to stop cavities without drilling
A liquid brushed onto cavities in seconds may spare many young children from pain, infection, and surgery. A major U.S. trial found that silver diamine fluoride stopp…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-29 20:35 GMT+8（北京时间）
ScienceDaily Scientists find a simple way to stop cavities without drilling A liquid brushed onto cavities in seconds may spare many young children from pain, infection, and surgery. A major U.S. trial found that silver diamine fluoride stopped decay in more than half of treated baby teeth. The treatment requires no drilling, shots…
Post #4964 186
These insect submariners survive depths that should crush them
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material calle…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:37 GMT+8（北京时间）
ScienceDaily These insect submariners survive depths that should crush them Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges…
Post #4963 141
Your dreams aren’t random. Your brain is rewriting reality
Dreams are not random mental noise. A large study of more than 3,700 dream and waking reports found that what we experience during sleep is shaped by both our persona…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:08 GMT+8（北京时间）
ScienceDaily Your dreams aren’t random. Your brain is rewriting reality Dreams are not random mental noise. A large study of more than 3,700 dream and waking reports found that what we experience during sleep is shaped by both our personalities and the world around us. Rather than simply replaying daily events, the dreaming brain…
Post #4962 117
These insect submariners survive depths that should crush them
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material calle…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:37 GMT+8（北京时间）
ScienceDaily These insect submariners survive depths that should crush them Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges…
Post #4961 109
These insect submariners survive depths that should crush them
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material calle…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:37 GMT+8（北京时间）
ScienceDaily These insect submariners survive depths that should crush them Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges…
Post #4960 94
Your dreams aren’t random. Your brain is rewriting reality
Dreams are not random mental noise. A large study of more than 3,700 dream and waking reports found that what we experience during sleep is shaped by both our persona…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:08 GMT+8（北京时间）
ScienceDaily Your dreams aren’t random. Your brain is rewriting reality Dreams are not random mental noise. A large study of more than 3,700 dream and waking reports found that what we experience during sleep is shaped by both our personalities and the world around us. Rather than simply replaying daily events, the dreaming brain…
Post #4959 103
These insect submariners survive depths that should crush them
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material calle…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:37 GMT+8（北京时间）
ScienceDaily These insect submariners survive depths that should crush them Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges…
Post #4958 123
These insect submariners survive depths that should crush them
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material calle…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:37 GMT+8（北京时间）
ScienceDaily These insect submariners survive depths that should crush them Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges…
Post #4957 116
These insect submariners survive depths that should crush them
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material calle…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-27 21:37 GMT+8（北京时间）
ScienceDaily These insect submariners survive depths that should crush them Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges…
Post #4956 139
The best way to save giant sequoias may be more fire
Giant sequoias are built to withstand ordinary fires, but recent extreme wildfires killed thousands of trees that had survived for centuries or even millennia. A new …
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-26 21:18 GMT+8（北京时间）
ScienceDaily The best way to save giant sequoias may be more fire Giant sequoias are built to withstand ordinary fires, but recent extreme wildfires killed thousands of trees that had survived for centuries or even millennia. A new analysis of about 26,400 sequoias found that trees in areas treated with prescribed burns…
Post #4955 147
A single dose reversed autism-like symptoms in adult mice within hours
Even mild inflammation during pregnancy led mouse offspring to develop persistent brain overactivity, sensory sensitivity, repetitive behaviors, and increased seizure…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-25 23:09 GMT+8（北京时间）
ScienceDaily A single dose reversed autism-like symptoms in adult mice within hours Even mild inflammation during pregnancy led mouse offspring to develop persistent brain overactivity, sensory sensitivity, repetitive behaviors, and increased seizure risk. Remarkably, one dose of rapamycin improved nearly all of these problems within about…
Post #4954 182
Scientists detect hidden skin damage before it becomes visible
Scientists have discovered a hidden warning sign of skin damage that appears before collagen fibers visibly thin, break, or lose their connections. Using advanced lig…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-20 21:38 GMT+8（北京时间）
ScienceDaily Scientists detect hidden skin damage before it becomes visible Scientists have discovered a hidden warning sign of skin damage that appears before collagen fibers visibly thin, break, or lose their connections. Using advanced light-based techniques, the team found that collagen’s carefully organized molecular “handedness”…
Post #4953 146
Scientists detect hidden skin damage before it becomes visible
Scientists have discovered a hidden warning sign of skin damage that appears before collagen fibers visibly thin, break, or lose their connections. Using advanced lig…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-20 21:38 GMT+8（北京时间）
ScienceDaily Scientists detect hidden skin damage before it becomes visible Scientists have discovered a hidden warning sign of skin damage that appears before collagen fibers visibly thin, break, or lose their connections. Using advanced light-based techniques, the team found that collagen’s carefully organized molecular “handedness”…
Post #4952 175
Eating chili peppers may raise the risk of one deadly cancer
A major review found that people who consumed the most chili peppers had a substantially higher risk of esophageal cancer, though the evidence was less clear for stom…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-14 21:27 GMT+8（北京时间）
ScienceDaily Eating chili peppers may raise the risk of one deadly cancer A major review found that people who consumed the most chili peppers had a substantially higher risk of esophageal cancer, though the evidence was less clear for stomach and colorectal cancers. Researchers emphasize that the findings show an association,…
Post #4951 152
This dinosaur fossil captures the final moments of a T. rex attack
A fossilized Edmontosaurus skull with a Tyrannosaurus tooth still embedded in its face has given scientists rare evidence of a dramatic predator-prey encounter. The d…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-07-14 14:48 GMT+8（北京时间）
ScienceDaily This dinosaur fossil captures the final moments of a T. rex attack A fossilized Edmontosaurus skull with a Tyrannosaurus tooth still embedded in its face has given scientists rare evidence of a dramatic predator-prey encounter. The discovery suggests the giant carnivore delivered an incredibly powerful face-to-face bite…
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