Reddit Science

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The original was posted on /r/science by /u/Hrmbee on 2025-08-07 03:34:13+00:00.

Original Title: Sediment core analysis of Canadian lakes show that algae have been increasing in most of them since the mid-1800s | Widespread 20th-century increases in Canadian lake primary production and the roles of climate warming, solar irradiance and human impacts

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The original was posted on /r/science by /u/likeawildbirdofprey on 2025-08-06 23:58:18+00:00.

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The original was posted on /r/science by /u/Hrmbee on 2025-08-06 23:11:26+00:00.

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The original was posted on /r/science by /u/amesydragon on 2025-08-06 20:24:59+00:00.

Original Title: Sometimes, traumatic experiences trigger responses that don’t align with the actual threat—like being bitten by a dog and then developing a fear of all dogs. A recent study in Nature Neuroscience hints how mammalian brains do this, forming intense specific memories of exciting or scary events.

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The original was posted on /r/science by /u/chrisdh79 on 2025-08-06 23:32:15+00:00.

Original Title: Verbal abuse in childhood has devastating impact on adult brain | The research highlights the need to treat verbal abuse as a serious public health issue that comes with enduring psychological consequences.

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The original was posted on /r/science by /u/isaac-get-the-golem on 2025-08-06 21:49:53+00:00.

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The original was posted on /r/science by /u/nohup_me on 2025-08-06 19:43:55+00:00.

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The original was posted on /r/science by /u/nohup_me on 2025-08-06 19:49:45+00:00.

Original Title: Using portable high-efficiency particulate air (HEPA) purifiers at home can significantly lower systolic blood pressure (SBP) in adults with elevated baseline readings — even in areas with relatively low overall air pollution levels

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The original was posted on /r/science by /u/Wagamaga on 2025-08-06 19:05:03+00:00.

Original Title: With just a few messages, biased AI chatbots swayed people’s political views. Research found participants who had higher self-reported knowledge about AI shifted their views less significantly — suggesting that education about these systems may help mitigate how much chatbots manipulate people

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The original was posted on /r/science by /u/mvea on 2025-08-06 18:55:40+00:00.

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The original was posted on /r/science by /u/The_Conversation on 2025-08-06 18:36:22+00:00.

Original Title: Wildfire season is starting weeks earlier in California and large fires have grown more frequent due to hotter temperatures and dryer atmospheric conditions, according to analysis of 30 years of fire data throughout the state. Effects are most severe mountainous regions.

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The original was posted on /r/science by /u/sciencealert on 2025-08-06 18:15:49+00:00.

Original Title: Grains of sediment recovered from the ocean could be evidence of an ancient comet that exploded in Earth's atmosphere 12,800 years ago, hypothetically triggering a rapid cooling event known as the Younger Dryas period

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The original was posted on /r/science by /u/TableSignificant341 on 2025-08-06 18:11:29+00:00.

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The original was posted on /r/science by /u/drewiepoodle on 2025-08-06 17:50:58+00:00.

Original Title: New weight-loss peptide targets glial support cells in the brain to suppress appetite and improve glucose metabolism in mice—without causing nausea or vomiting, a common side effect of current obesity drugs.

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The original was posted on /r/science by /u/IEEESpectrum on 2025-08-06 16:10:26+00:00.

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The original was posted on /r/science by /u/Sea_Dot8299 on 2025-08-06 15:38:12+00:00.

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The original was posted on /r/science by /u/sciencealert on 2025-08-06 15:16:33+00:00.

Original Title: Ancient stone tools dating to 1.04 million years ago on the Indonesian island of Sulawesi provide the oldest evidence of extinct hominins in the island region, suggesting the ‘Hobbit’ species (Homo floresiensis) may have been predated by an unknown hominin population

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The original was posted on /r/science by /u/calliope_kekule on 2025-08-06 13:52:13+00:00.

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The original was posted on /r/science by /u/twistedfroot on 2025-08-06 11:00:25+00:00.

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The original was posted on /r/science by /u/calliope_kekule on 2025-08-06 13:47:35+00:00.

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The original was posted on /r/science by /u/calliope_kekule on 2025-08-06 13:36:31+00:00.

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The original was posted on /r/science by /u/mvea on 2025-08-06 12:38:07+00:00.

Original Title: People with high autistic traits differ from their neurotypical peers in what they find attractive in human faces. They tend to show a stronger preference for masculine features, especially in female faces. For those with high autistic traits, attraction may not hinge on mainstream ideals of beauty.

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The original was posted on /r/science by /u/memorialmonorail on 2025-08-06 12:24:22+00:00.

Original Title: The established conservation practice of relocating animals from large, genetically diverse populations to small communities of inbred endangered species may risk introducing more damaging than beneficial gene variants into the threatened group, a new study suggests.

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The original was posted on /r/science by /u/PHealthy on 2025-08-06 11:40:30+00:00.

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The original was posted on /r/science by /u/bluish1997 on 2025-08-06 02:42:56+00:00.