About r/psychology
In its own words:
A Reddit community for sharing and discussing science-based psychological material.
The community was created on Mar 8, 2008, which makes it 18 years old. Since Oct 19, 2026, it has gained 2,926 subscribers (+0.06%). Among the 6 communities on our science list it is number 4 by size.
What sets r/psychology apart
Its rhythm is strongly tied to time zones: the busiest hour (22:00 UTC) sees about 7.0× as many posts as the quietest (01:00 UTC).
Subscriber growth
Between Sep 19, 2026 and Oct 29, 2026, r/psychology grew from 4,909,959 to 4,920,808 subscribers (+10.8K, +0.22%). That is about 271 new members per day. The chart uses our weekly snapshots (8 so far), so it gets longer every week.
Top posts on r/psychology this week
The most upvoted posts of the past seven days, in the order Reddit ranks them (collected Oct 30, 2026).
- 31.4% of Young Women vs. 11.4% of Young Men Identify as LGBTQ+: What It Could Mean for Heterosexual Datingu/Emillahr · Oct 24 · link
- The menstrual cycle appears to modulate the severity of ADHD traits in women taking common stimulant medications. These traits peak in severity during menstruation and ease soon after, pointing towar…u/mvea · Oct 26 · link
- ChatGPT Is Building Detailed Psychological Profiles of Its Usersu/Mathemodel · Oct 26 · link
- Autistic brains react less to being told "you're wrong," new study finds. People with autism showed weaker brain responses to negative feedback, and unlike others, their reactions didn't change with …u/mvea · Oct 26 · link
- Your body makes its own cannabis-like chemicals as you run, and neuroscience research finds they keep rising all the way to the marathon finish line, a possible clue to the runner’s highu/haloarh · Oct 25 · link
- How dismissed symptoms can push patients to breaking point: Patients with autoimmune diseases have been left feeling suicidal after feeling like their doctor was saying their symptoms were ‘all in th…u/mvea · Oct 27 · link
- Magic mushroom compound psilocybin grows new brain connections within 24 hours and repairs circuits damaged by chronic stress in mice. Scientists found the brain rewiring runs on a different pathway …u/mvea · Oct 25 · link
- Men who blend emotional openness and progressive gender attitudes into their sense of manhood appear to be less reactive when their masculinity is called into question. Findings suggest that how men …u/FreeHugs23 · Oct 29 · link
- Sugar restriction in early life is linked to lower dementia risk and slightly slower brain aging decades lateru/FreeHugs23 · Oct 23 · link
- LSD makes the brain's main rhythms faster and weaker while making its activity more complex and fractal, mostly in areas for vision, hearing, language and emotions, but not movement. Surprisingly, li…u/mvea · Oct 23 · link
All-time top posts
The highest-ranked posts in the history of r/psychology, from 2017 to 2026, ranked by Reddit.
- Baby boomers are more sensitive than millennials, according to the largest-ever study on narcissismu/bllshrfv · Mar 11, 2022 · 33,812 points · 1,918 comments · link
- First-ever scan of a dying human brain reveals life may actually 'flash before your eyes'u/D-R-AZ · Feb 13, 2025 · link
- Atheists are nicer to Christians than Christians are to atheists, study findsu/UweLang · Sep 10, 2025 · link
- A white supremacist took MDMA for a study, and it snapped him out of his beliefs: 'Why am I doing this?'u/startst5 · Jun 16, 2023 · 20,273 points · 1,393 comments · link
- The children’s mental health crisis didn’t start with the pandemicu/pssyched · Mar 27, 2022 · 18,773 points · 899 comments · link
- Why Are So Many Young Men Single And Sexless: The haunting relationship trends wreaking havoc on 20-somethings.u/pistruiata · Feb 27, 2023 · 16,469 points · 6,675 comments · link
- Teen suicides plummeted in March '20, when schools shut due to COVID. Returning from online to in-person schooling was associated with a 12-18% increase in teen suicides.u/saveyourtissues · Jan 1, 2023 · 15,805 points · 681 comments · link
- Millennials Aren't Coddled - They Just Reject Abuse As A Management Tacticu/Mynameis__--__ · Feb 5, 2017 · 13,571 points · 1,167 comments · link
- Scientists Find No Evidence That Depression Is Caused by “Chemical Imbalance” or Low Serotonin Levelsu/ScaryPoppins87 · Jul 30, 2022 · 12,341 points · 1,594 comments · link
- Study has found that people who report favorable views of Donald Trump also tend to score higher on measures of callousness, manipulation, and other malevolent traits—and lower on empathy and compass…Jul 23, 2025 · link
What r/psychology talks about
Across 120 recent posts (Oct 21–Oct 28), the words that come up most are “study”, “brain”, “research”, “women” and “finds”. Other frequent themes are found, men, adults, feel, emotional and suggests. Recurring phrases include “study finds”, “study suggests”, “mind manipulation” and “genetic risk”. By format, 58% are links, 28% are images and 11% are videos.
Activity and best time to post
r/psychology gets about 19 new posts a day. The public archive holds 145,145 posts and 1,270,832 comments in total, about 8.8 comments per post. Last week the busiest day was Wednesday (24 posts) and the quietest was Tuesday (11). Posting peaks around 22:00 UTC and is lowest around 01:00 UTC.
Rules of r/psychology
The moderators of r/psychology list 9 rules. In short:
- Peer-reviewed citations for all submissions
- Video submission citations
- No jokes, low effort-content, or off-topic content
- No self-help, blogspam, or "guru" websites
- No surveys
- No clickbait or editorialized headlines
- Be civil
- Comments must be on topic
- No dismissive or anti-science comments
How to join
Open reddit.com/r/psychology and press “Join”. Read the community rules in the sidebar before you post: every subreddit is run by its own volunteer moderators.
Frequently asked questions
How many members does r/psychology have?
r/psychology has 4,920,808 subscribers, which makes it the #185 safe-for-work subreddit in the SubMouse ranking. It added 10,849 members between Sep 19, 2026 and Oct 29, 2026.
How old is r/psychology?
r/psychology was created on Mar 8, 2008, so it has been around for 18 years.
How active is r/psychology?
Moderately: r/psychology gets about 19 new posts a day (average of the last four weeks). Over its lifetime the archive counts 145,145 posts and 1,270,832 comments. In a sample of 120 recent posts we counted 79 different authors.
When is r/psychology most active?
Based on post counts from Oct 22, 2026 to Oct 28, 2026, the busiest day was Wednesday and the quietest Tuesday, and most posts arrive around 22:00 UTC, with the fewest around 01:00 UTC. More posts also means more competition, so a quieter hour can help a post get noticed.
What is r/psychology about?
The community describes itself as: “A Reddit community for sharing and discussing science-based psychological material.” Recent post titles often mention study, brain, research, women and finds. Most posts are links (58%).
Is r/psychology safe for work?
Yes. Reddit does not mark r/psychology as an 18+ (NSFW) community. SubMouse lists safe-for-work subreddits only.
How do I post on r/psychology?
Join the community on Reddit first, then use “Create post”. r/psychology accepts link and media posts (no plain text posts), with images, videos and galleries enabled. It has 9 posted rules, starting with: “Peer-reviewed citations for all submissions”; “Video submission citations”; “No jokes, low effort-content, or off-topic content”. Moderators remove posts that break the rules, so read them in the sidebar before posting.
Which communities are like r/psychology?
Communities with similar topics include r/science (34.6M), r/SkincareAddiction (5M), r/askscience (26.4M), r/compsci (4M) and r/Futurology (21.7M).
Stats from public data (data updated Oct 29, 2026; activity, rules and archive totals via the Arctic Shift archive, Oct 30, 2026; top posts from Reddit’s public feeds). Point and comment counts are archive snapshots and can be lower than on Reddit today. SubMouse is an independent directory and is not affiliated with Reddit or the moderators of r/psychology.