r/science is a subreddit with 34.4M members. The most common kinds of discussions are news and solution requests, and the community frequently discusses health, worst, study, climate, and struggling.
This community is a place to share and discuss new scientific research. Read about the latest advances in astronomy, biology, medicine, physics, social science, and more. Find and submit new publications and popular science coverage of current research.
Popular Themes in r/science
#1
News
: "New study tests whether liberals’ moral concern has “inverted” to favor distant others over close ones. Across three US samples (N=5,100), ingroups remain the top moral priority for liberals and conservatives alike; liberals simply extend more concern outward to distant entities."
6 posts
#2
Solution Requests
: "New method turns ocean water into drinking water, without waste"
1 post
#3
Advice Requests
: "Researchers identify a costly pattern in consumer debt repayment. Borrowers with multiple installment loans tend to prepay the oldest one first, even when paying down a newer loan would save more interest."
1 post
Popular Topics in r/science
#1
Health
: "The United States is facing a severe and growing shortage of medical doctors who specialize in adult mental Health care. Research provides evidence that the demand for these medical professionals will sharply increase over the next decade while the available supply decreases."
59 posts
#2
Worst
29 posts
#3
Study
: "ADHD and Rejection Sensitivity: A qualitative Study explores how the anticipation of rejection causes more psychological distress than the actual events, driving a "vicious circle" of emotional masking, bodily pain, and social withdrawal. (n=5)"
21 posts
#4
Climate
: "Global rivers are losing oxygen, with 78.8% experiencing sustained deoxygenation over the last 40 years. A new study shows Climate warming is the main driver, with tropical rivers emerging as the most vulnerable hotspots for severe hypoxia."
21 posts
#5
Struggling
17 posts
#6
Brain
: "A healthy Brain, achieved through exercise, a healthy diet, sufficient sleep, and embracing new cognitive challenges, may help shield thinking and memory skills from the early effects of Alzheimer's disease, according to an MRI study on 600 Americans"
15 posts
#7
Technology
14 posts
#8
Research
: "Early-career Researchers do more ‘disruptive’ science than veterans. Analysis of millions of scientists shows that older Researchers tend to stick with ideas from their past. This phenomenon, the nostalgia effect, can hold back scientific innovation, as scientists get hung up on ideas from the past."
13 posts
#9
Environment
: "Global rivers are losing oxygen, with 78.8% experiencing sustained deoxygenation over the last 40 years. A new study shows climate warming is the main driver, with tropical rivers emerging as the most vulnerable hotspots for severe hypoxia."
11 posts
#10
Mental
: "The United States is facing a severe and growing shortage of medical doctors who specialize in adult Mental health care. Research provides evidence that the demand for these medical professionals will sharply increase over the next decade while the available supply decreases."
10 posts
Flair Used in r/science
#1
Psychology
: "TikTok disproportionately served anti-Democratic videos during the 2024 election. TikTok’s recommendation system tends to expose users to more conservative and anti-Democrat political content than liberal material. This ideological imbalance occurs regardless of a user’s initial political interests."
61 posts
#2
Health
: "Adults should aim to do between 560-610 minutes/week of moderate to vigorous physical activity to achieve a substantial reduction in the risk of heart attacks and stroke (3-4 times higher than the current public health recommendation of 150 minutes ), suggest the findings of an observational study"
44 posts
#3
Neuroscience
: "Caffeine may cause “shallow” sleep, the body may spend eight hours in bed, but the brain may fail to fully regenerate. Caffeine improves alertness and reduces sensation of fatigue, but its effects may sometimes resemble “borrowing energy” at the expense of nighttime regeneration."
28 posts
#4
Medicine
: "Abortion bans in 14 states lead to 9.2% increase in pregnancy-associated deaths of women."
17 posts
#5
Social Science
: "Most Americans, whether on the right or left, claim to support freedom of speech. However, survey experiments show that after President Trump began explicitly calling for speech restrictions, Trump voters became increasingly supportive of government censorship of outparty media and individuals."
12 posts
#6
Environment
: "Attack on Iran’s oil released as much pollution as a volcano. Nearly 30,000 tons of the toxic gas spread across the Middle East within days. Local residents reported immediate health impacts, such as respiratory distress, skin irritation, and a "bitter taste" in the mouth"
8 posts
#7
Cancer
: "GLP-1 weight loss drugs linked to lower breast cancer incidence in large cohort study. Study of more than 110,000 women found that those who took GLP-1 medications were about 30% less likely to develop breast cancer than those who did not take GLP-1 medications."
4 posts
#8
Biology
: "Masturbation among birds is ‘natural’ and should not be punished. Study finds activity is not harmful or caused by stress of captivity – and is in fact more common in wild birds."
4 posts
#9
Anthropology
: "Yeast has been growing in the guts of frozen mummy called Oetzi the Iceman for thousands of years, scientists have discovered, telling AFP they used it to make a sourdough bread and publishing their findings in Springer Nature's Microbiome journal."
3 posts
#10
Materials Science
: "Cement production accounts for 8% of global CO2. A new electrochemical process from UBC reduces emissions by 98% and energy demand by 70%. By using recycled cement and low temperatures, researchers have defined a "green" path for the construction industry."
3 posts
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+280k members(0.8%)
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Last updated: June 12, 2026