7 Best Quantified Self Subreddits (Updated May 2026)

7 Quantified Self communities on Reddit

Updated 5/18/2026

All

#1
r/Biohackers
on reddit
Welcome to r/Biohackers. This community is designed for individuals interested in DIY biology, sometimes referred to as biohacking. It focuses on DIY biology, Pharmacology, and Grinding techniques. Members can collaborate, share knowledge, and explore topics such as genetic engineering, experimental pharmacology, life extension, longevity, supplements, nootropics, sleep, fitness, and transhumanism. This space encourages scientific inquiry and experimentation in accessible, hands-on ways.
850K members
Forum
17 views / month
#2
r/selftracking
on reddit
Welcome to selftracking.
321 members
Forum
4 views / month
#3
r/WearableFitness
on reddit
/r/WearableFitness is a place for users of wearable tech to discuss the latest wearable fitness products and to share their own achievements. Users of all wearable platforms are welcome!
270 members
Forum
#4
r/QuantifiedSelf
on reddit
Welcome to QuantifiedSelf.
25K members
Forum
7 views / month
#5
r/QuantifiedDiabetes
on reddit
A forum to discuss and collaborate on self-tracking and experiments to figure out how diabetes works and better control it.
953 members
Forum
#6
r/sleephackers
on reddit
A community to discuss the latest research and tips related to sleep. Our members share their personal experiences and tips, as well as the latest research on topics such as sleep disorders, sleep hygiene, and the impact of technology on sleep.
52K members
Forum
#7
r/biohacking
on reddit
Welcome to r/biohacking by Josh Universe, a community dedicated to exploring the exciting world of biohacking and pushing the boundaries of human potential through scientific advancements and self-optimization. Whether you're interested in enhancing cognitive function, improving physical performance through peptide research, extending your lifespan, or delving into cutting-edge technologies like CRISPR, this is the place to share knowledge, experiences, and ideas.
69K members
Forum
4 views / month

All Quantified Self communities

Quantified Self
20 communities for Quantified Self Trackers
283 / mo
Quantified Self, 20 communities, 283 views per month including community pages

FAQ

: Communities for people tracking their health data, from continuous glucose monitors and wearables to sleep logs and heart rate variability. Discussion covers protocols, device comparisons, and making sense of personal data, with a mix of biohacking enthusiasts, health researchers, and everyday people optimizing their routines.
: Hive Index lists 7 Quantified Self subreddits on Reddit. Most listings with size data are medium (43%) or huge (43%). We only have a handful of listings so far, so treat these numbers as directional. The main Quantified Self topic page covers every platform we track for this topic.
: Forum is the most common feature (100% of listings).
: All 7 listings on this page are free to join (no paid membership or application gate listed). Access rules can still change on the community side.
: On Hive Index, the default Popular sort surfaces r/Biohackers, r/selftracking, r/WearableFitness, and r/QuantifiedSelf first. Popularity reflects visitor interest in communities on the site, not a universal quality score. Use the sort menu for Ratings, Largest, or Newest.
: Listings are submitted by community builders and researchers, reviewed for topic relevance, and updated with platform, feature, member, review, and traffic data where available. Member counts are approximate. Popular reflects visitor interest in communities on the site, with richer profiles breaking ties. Ratings, Largest, and Newest use review scores, reported member counts, and listing age instead.
: This page was last updated 5/18/2026, based on the most recent change to the topic or its listings. We refresh entries when communities are submitted, claimed, or reviewed, and we update member counts, features, and traffic data on an ongoing basis.