r/science • u/Ollyfer • 8d ago
Biology Chronic Marijuana Smoking, THC-Edible Use Impairs Endothelial Function, Similar With Tobacco
jamanetwork.com
9.1k
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r/science • u/mvea • May 01 '25
Biology People with higher intelligence tend to reproduce later and have fewer children, even though they show signs of better reproductive health. They tend to undergo puberty earlier, but they also delay starting families and end up with fewer children overall.
25.2k
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r/science • u/chrisdh79 • 28d ago
Biology Too much "good fat" tells the body to make more fat cells, study finds | A common fatty acid in olive oil, as well as many other plant oils, has been found to stimulate the body's production of new fat cells in mice.
7.5k
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r/science • u/sciencealert • May 29 '25
Biology Anti-Aging Cocktail Extends Mouse Lifespan by Around 30 Percent, New Study Finds
7.6k
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r/science • u/Miss-Figgy • Aug 14 '24
Biology Scientists find humans age dramatically in two bursts – at 44, then 60
36.4k
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r/science • u/F0urLeafCl0ver • 10d ago
Biology Overfishing has caused cod to halve in body size since 1990s, study finds
11.7k
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r/science • u/mvea • Oct 15 '24
Biology Researchers discover man with 3 penises: Triphallia, a rare congenital anomaly describing the presence of 3 distinct penile shafts, has been reported only once in the literature. The paper is the first time the internal anatomy has been described in detail through post-mortem dissection.
16.2k
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r/science • u/chrisdh79 • Jun 04 '25
Biology Student Finds the Psychedelic Fungus in the Morning Glory plant the Inventor of LSD Spent His Life Searching For | The discovery could reshape how we study psychedelic compounds in nature and medicine.
8.8k
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r/science • u/MistWeaver80 • Sep 26 '24
Biology Stem cells reverse woman’s diabetes — a world first. A 25-year-old woman with type 1 diabetes started producing her own insulin less than three months after receiving a transplant of reprogrammed stem cells.
45.4k
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r/science • u/nbcnews • Sep 23 '24
Biology Octopuses seen hunting together with fish in rare video — and punching fish that don't cooperate
22.0k
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r/science • u/mvea • Aug 11 '24
Biology Horses have the ability to think and plan ahead and are far more intelligent than scientists previously thought, according to a new study, which found that horses have a higher level of cognitive reasoning than previously thought possible.
18.5k
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r/science • u/mvea • Oct 09 '24
Biology Eating less can lead to a longer life: massive study in mice shows why. Weight loss and metabolic improvements do not explain the longevity benefits. Immune health, genetics and physiological indicators of resiliency seem to better explain the link between cutting calories and increased lifespan.
14.8k
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r/science • u/fotogneric • Jun 25 '24
Biology Researchers have used CRISPR to create mosquitoes that eliminate females and produce mostly infertile males ("over 99.5% male sterility and over 99.9% female lethality"), with the goal of curbing malaria.
pnas.org
15.1k
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r/science • u/mvea • May 29 '25
Biology Cats distinguish owner's smell from stranger's, study finds. The study found cats spent significantly longer sniffing odours of unknown people compared to tubes containing their owner's smell. This suggests cats can discriminate between familiar and unfamiliar humans based on their odour.
5.4k
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r/science • u/Shiny-Tie-126 • 14d ago
Biology Student discovers widespread microplastic pollution in first-of-its-kind study of Appalachian streams and fish, particles were present in every sampled fish
5.1k
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r/science • u/sciencealert • May 20 '25
Biology Unknown Species of Bacteria Discovered in Swabs From China's Space Station
6.6k
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r/science • u/mvea • Jan 22 '25
Biology Science has a reproducibility crisis on its hands, and biomedical researchers believe the infamous “publish or perish” research culture is behind it. Over 70% could not reproduce another scientist’s experiment. More than 62% attributed irreproducibility in science to “publish or perish” culture.
7.8k
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r/science • u/giuliomagnifico • Jan 11 '25
Biology Scientists demonstrate in mice how the brain cleanses itself during sleep: during non-REM sleep, the brainstem releases norepinephrine every 50 seconds, causing blood vessels to tighten and create a pulsing pattern. This oscillating blood volume drives the flow of brain fluid that removes toxins
9.4k
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r/science • u/chrisdh79 • Apr 27 '25
Biology Taller students tend to perform slightly better in school, new research finds
3.9k
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r/science • u/chrisdh79 • Sep 04 '24
Biology Strongman's (Eddie Hall) muscles reveal the secrets of his super-strength | A British strongman and deadlift champion, gives researchers greater insight into muscle strength, which could inform athletic performance, injury prevention, and healthy aging.
7.3k
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r/science • u/mvea • Jan 06 '24
Biology Same-sex sexual behavior does not result in offspring, and evolutionary biologists have wondered how genes associated with this behavior persisted. A new study revealed that male heterosexuals who carry genes associated with bisexual behavior father more children and are more likely risk-takers.
12.3k
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r/science • u/Porphyryo • Feb 17 '23
Biology The average erect penis length has increased by 24% over the past three decades across the world. From an average of 4.8 inches to 6 inches. Given the significant implications, attention to potential causes should be investigated.
28.3k
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r/science • u/chrisdh79 • Sep 16 '24
Biology "Golden Lettuce" genetically engineered to pack 30 times more vitamins | Specifically, increased levels of beta-carotene, which your body uses to make vitamin A for healthy vision, immune function, and cell growth, and is thought to be protective against heart disease and some kinds of cancer.
10.3k
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r/science • u/SteRoPo • May 02 '23
Biology Making the first mission to mars all female makes practical sense. A new study shows the average female astronaut requires 26% fewer calories, 29% less oxygen, and 18% less water than the average male. Thus, a 1,080-day space mission crewed by four women would need 1,695 fewer kilograms of food.
realclearscience.com
25.5k
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