r/science images and videos

Two-year, placebo-controlled, double-blinded clinical trial results show supplements with omega-3s (like fish oil) have no effect on memory or cognitive function in older adults at risk for Alzheimer’s disease, despite showing evidence that the nutrients directly reach the brain

Colon cancer’s invisibility cloak removed by eliminating a single gene - a fundamental breakthrough. The result was 100% eradication of tumours when paired with immunotherapy treatment in mouse models.

Younger generations are aging biologically faster than their older counterparts. This faster biological aging is also linked to early-onset cancers. Immune system aging is linked to earlier lung cancer; fat tissue aging is linked to earlier colorectal cancer.

Use of weight loss drugs like Ozempic and other GLP-1s is associated with a lower risk of developing alcohol, opioid, nicotine and cocaine use disorders

Largest study of women’s orgasms to date collected data from 27,931 women. Nearly half (47%) reported reaching orgasm more frequently when alone vs. when with a partner. Barriers to women’s orgasms are relational, not anatomical. Partnered orgasms were associated with overall sexual satisfaction.

College doesn’t make students as liberal as people think. Completing a college degree has been linked to a liberal political identity. While college students do tend to adopt more left-leaning identities during their education, the actual changes are much smaller than the general public assumes.

A low-protein Mediterranean-style diet rich in plants and fish and supplemented with essential amino acids increased healthy lifespan and reduced frailty, body fat and cardiometabolic risk markers in animal models, while human data linked lower animal protein intake to better health outcomes

South Korean students discovered that the First Law of Thermodynamics applies in black holes.

Republicans are more likely to see a smile as a play for power. A hierarchy management smile is used to show superiority or to appease someone who holds more power. In contrast, living in a highly diverse environment tends to foster a bonding-focused interpretation of smiles.

Abortion decision in US prompts women’s healthcare providers to become more politically engaged. In the wake of Dobbs, physicians who specialize in women’s health were more likely to vote in the midterms than their peers.

Shockwaves from routine military duties associated with long-term anger and violence. This association remains visible even when accounting for other mental health factors like post-traumatic stress disorder.

CEO narcissism is linked to value-destroying insider transactions, study finds

A longitudinal study followed children from age 1 to 8 years and found that higher screen viewing time—particularly during infancy and around school-entry age—was consistently associated with poorer academic performance at age 9 and weaker working memory at age 10.5.

GLP-1 weight loss drugs may also help skin conditions such as psoriasis or eczema (atopic dermatitis). GLP-1 receptors are found not only in the pancreas and gastrointestinal tract, but also on immune cells. These drugs may directly affect the development of chronic inflammation.

Facial appearance can shape parole and recidivism judgments. "Criminal"-looking faces were judged less deserving of parole and more likely to reoffend. "Remorseful" facial features often led to more favorable legal judgments and outcomes.

Neuroimaging study of adolescents with ADHD found age-related increases in glutamate levels in the prefrontal cortex. In contrast, individuals who experienced remission of ADHD symptoms and people who never suffered from ADHD had an age-related decrease in glutamate levels in this area of the brain.

Following national elections, voters rewrite their memories of the political event and distort their initial expectations to align closely with the eventual outcome. These self-serving cognitive biases protect individual self-esteem and group identity, helping to maintain profound partisan divides.

Nuts can cut our risk of dementia. A study of 17,349 participants found eating between 0.1g and 5g of nuts a day reduced the risk of dementia by 20%, while greater than 5g reduced it by 24%.

Alzheimer's disease and related dementias will cost the United States an estimated $818 billion this year, driven largely by often-overlooked costs to persons living with dementia and family and friends providing their care.

Indian scientists identify antiviral compounds in cow urine, effective against Chikungunya virus

Scientists uncover the physical signs of lucid dreaming in people with trauma symptoms. The physical characteristics of a person’s sleep cycle are intimately connected to their conscious awareness during dreaming. Tracking physical rest metrics might aid in treating trauma-related nightmares.

A 60%+ drop in insect abundance since the 1970s has left Canada's tree swallows smaller and producing fewer young, a new study finds. While climate change causes birds to miss the peak insect emergence by 3 days/decade, the plummeting prey volume means the reward for nesting early has vanished.

Interstellar comet may be oldest object seen in our solar system, scientists say

Why opposites don’t attract: A global study reveals the true rules of romantic compatibility. Romantic success relies on different psychological rules depending on the specific characteristics being evaluated and the cultural background of the couple.

Ultra-processed foods linked to lower memory and concentration in young adults. Study suggests that relying heavily on industrially processed snacks and meals might negatively affect cognitive performance during a period of life when the brain is still developing.

Genetic risk for Alzheimer’s disease could depend on how well you sleep. Genetic variations related to brain fluid movement interact with sleep quality to influence memory and brain structure in older adults. Their effects may depend heavily on how well a person sleeps.

Research shows one billion more people are currently facing at least one day of "extreme heat stress" annually compared to the 1970s. Subtropical regions now experience up to 50 additional days annually with "strong to extreme heat stress,"

Malicious software crafted with the assistance of generative AI (vibecoded malware) have varied code structures that can evade static malware detection, and can be acocmplished in as few as two prompts

Researchers have transitioned a laboratory-scale technology into a scalable, real-world application that uses solar power to convert plastic waste and cellulose into clean hydrogen fuel and valuable industrial chemicals.