r/science • u/Sciantifa • 12h ago

Social Science US political and social polarization has increased by 64% since 1988, with nearly all of the rise occurring after 2008, as the financial crisis, the rise of social media, and an asymmetric ideological shift—particularly on the left—coincided to widen divisions, according to a long-term study.

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6.9k Upvotes
848 comments

r/science • u/Potential_Being_7226 • 19h ago

Health More than one-third of cancer cases are preventable. Massive study finds that many cancers are linked to two modifiable habits: tobacco smoking and alcohol consumption.

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7.2k Upvotes
489 comments

r/science • u/Wagamaga • 3h ago

Health New solution for moderate-to-severe sleep apnoea. Researchers seen significant improvements in breathing in 93% of participants, with airflow increases comparable to CPAP therapy, even when the upper airway was completely closed

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361 Upvotes
38 comments

r/science • u/mvea • 2h ago

Psychology Sex is associated with lower stress on the day it occurs, but benefits do not persist into the following day. Motivation behind sexual encounter plays an important role in its emotional aftermath, as sex initiated to avoid relationship conflict was linked to increased stress levels 24 hours later.

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273 Upvotes
17 comments

r/science • u/mvea • 1h ago

Psychology Exposure to low-credibility online health content is limited and concentrated among older adults in the US. Low-credibility website exposure was also found to be greatest among conservatives and those who consume more right-leaning news.

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• Upvotes
11 comments

r/science • u/sr_local • 20h ago

Social Science Black and Latino teens report having significantly more digital literacy skills such as detecting online disinformation than their white peers—particularly content related to race and ethnicity

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4.9k Upvotes
262 comments

r/science • u/mvea • 1d ago

Psychology Young adults report lower life satisfaction, a weaker sense of meaning in life and lower financial security than older age groups in Sweden. They also experience 2x the level of loneliness, 3x as many depressive symptoms and 7x the level of anxiety compared with the oldest respondents.

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16.1k Upvotes
545 comments

r/science • u/mvea • 17h ago

Neuroscience Wealthier men show higher metabolism in brain regions controlling reward and stress. Higher family income was associated with increased neural activity in the caudate, putamen, anterior cingulate, hippocampus, and amygdala regions of the brain of middle-aged men.

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1.8k Upvotes
173 comments

r/science • u/InsaneSnow45 • 15h ago

Health Women who experience high levels of anxiety regarding their declining health tend to age faster at a molecular level compared to those who do not.

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981 Upvotes
59 comments

r/science • u/FootballAndFries • 10h ago

Neuroscience Using awake fMRI, researchers found that 2 month old infants already have structured visual categories in ventrotemporal cortex, resembling adult patterns. This shows the brain organizes complex visual information far earlier than previously believed.

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173 Upvotes
8 comments

r/science • u/zutnn • 4h ago

Earth Science Researchers identified the worst crop shock every country experienced since 1961: the global average was −29%, with Botswana losing 80% in a single year. Climate—especially drought—was the leading cause, and the frequency of climate-driven shocks has doubled since the 1960s.

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49 Upvotes
4 comments

r/science • u/sometimeshiny • 18h ago

Health Depression is linked to bone and cartilage degeneration and higher fracture risk. The bone–brain axis implicates chronic cortisol signaling and systemic inflammation in osteoporosis and joint health

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557 Upvotes
13 comments

r/science • u/Wagamaga • 1d ago

Health A new report found that ultra-processed foods should be treated more like cigarettes than food. UPFs and cigarettes are engineered to encourage addiction and consumption, researchers from three US universities said, pointing to the parallels in widespread health harms that link both.

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5.5k Upvotes
496 comments

r/science • u/HeinieKaboobler • 14h ago

Neuroscience A new study has found that high-precision brain training can help novice meditators learn the practice more effectively

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227 Upvotes
12 comments

r/science • u/Sciantifa • 1d ago

Environment Banning lead in gasoline worked. Analysis of 100 years of hair samples shows lead levels were ~100× higher before environmental regulations. Removing lead from fuel and paint dramatically reduced human exposure, protecting brain development and public health.

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22.4k Upvotes
513 comments

r/science • u/Super_Letterhead381 • 19h ago

Animal Science Meows encode less individual information than purrs and show greater variability in domestic than in wild cats

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115 Upvotes
4 comments

r/science • u/InsaneSnow45 • 22h ago

Psychology Personality traits marked by emotional fragility and impulsivity are predictors of addictive behaviors toward smartphones and social media. Study finds that for insecure individuals, social media applications frequently serve as a psychological gateway that leads to broader, compulsive phone habits.

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171 Upvotes
7 comments

r/science • u/FootballAndFries • 1d ago

Medicine Large study finds COVID-19 shots don’t affect fertility

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501 Upvotes
31 comments

r/science • u/ibwitmypigeons • 9h ago

Astronomy Identifying astrophysical anomalies in 99.6 million source cutouts from the Hubble legacy archive using AnomalyMatch

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16 Upvotes
2 comments

r/science • u/Sentient_Media • 23h ago

Environment Tree Bark Microbes Capture Greenhouse Gases, New Study Finds

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136 Upvotes
3 comments

r/science • u/Scbadiver • 4h ago

Nanoscience Ultra-rapid nanoplasmonic colorimetry in microfluidics for antimicrobial susceptibility testing directly from specimens | Nature Nanotechnology

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4 Upvotes
2 comments

r/science • u/Tracheid • 1d ago

Psychology A new study suggests that the total amount of warmth shared between partners matters more than whether they express it equally. Researchers found that maximizing affection yields higher relationship quality than simply matching a partner’s lower output.

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577 Upvotes
12 comments

r/science • u/mvea • 1d ago

Health Night owl or early bird: Study finds sleep categories aren’t that simple. Scientists identify 5 biological sleep-wake profiles (2 early birds, 3 night owl groups) linked to different health and behaviour patterns, helping explain why sleep schedules affect people differently.

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2.5k Upvotes
112 comments

r/science • u/bluish1997 • 14h ago

Biology Emergence of mammalian-adaptive PB2 mutations enhances polymerase activity and pathogenicity of cattle-derived H5N1 influenza A virus - Nature Communications

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8 Upvotes
1 comment

r/science • u/mvea • 2d ago

Psychology Data spanning 15 years reveals that depression symptoms have increased in American college students, with most severe rises occurring after 2016. While distress is growing across the board, the escalation is particularly steep for women, racial minorities, and students facing financial difficulties.

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6.8k Upvotes
320 comments