Wellness, with citations.
65f is a peer-driven wellness archive: every claim has a source, every page has its own discussion, and every contribution is part of one connected forum. The name is a nod to the temperature sleep scientists cite as optimal — small numbers, done right.
The seven pillars
All topics →Sleep
Rest, circadian rhythm, recovery
02 / PillarNutrition & Supplements
Food, vitamins, nootropics, adaptogens
03 / PillarFitness & Recovery
Training, mobility, cold & heat, recovery
04 / PillarHormones & Longevity
HRT, TRT, metabolic & longevity
05 / PillarMental Health
Stress, focus, mood, meditation
06 / PillarSkin, Hair & Beauty
Derm, topicals, anti-aging
07 / PillarGut & Immunity
Microbiome, probiotics, immune support
From the magazine
All articles →New Research Uncovers How Exercise Reverses Muscle Aging Through Gene Regulation
Scientists have identified a biological mechanism involving the DEAF1 gene that explains how exercise can help aging muscles repair themselves. This discovery sheds light on why physical activity is crucial for maintaining muscle health and offers potential avenues for future therapies [1].
Long-Term Study Pinpoints Age 35 as Start of Physical Decline, Highlights Exercise Benefits
A nearly five-decade study from Sweden indicates that physical fitness and strength generally begin to decline around age 35, even in active individuals. However, the research also emphasizes that engaging in physical activity at any age can significantly improve performance and mitigate age-related decline.
Understanding Vitamin D: Forms, Dosages, and Practical Considerations
This overview explores the different forms of vitamin D, their efficacy, and general dosage guidelines. It emphasizes the importance of D3 over D2 and highlights safe intake levels.
Understanding Healthy Sleep: Its Importance, Mechanisms, and How to Improve It
Quality sleep is fundamental to overall health, impacting nearly every bodily system from brain function to immune response. This overview from the NIH details the science of sleep, including its distinct stages and regulatory mechanisms, alongside practical advice for improving sleep hygiene.
When Diet Becomes Identity: How Social Affiliation Shapes Food Choices and Scientific Reception
A recent article explores how dietary choices are increasingly tied to social identity and personal values, moving beyond health or taste. This shift can impact how individuals interpret scientific evidence regarding nutrition.
Robust Daily Rhythms of Light Exposure and Wrist Temperature Linked to Better Metabolic Health
A recent study suggests that consistent daily patterns of light exposure and wrist temperature, key indicators of circadian rhythm robustness, are associated with improved metabolic health markers. These findings highlight the potential of wearable technology to non-invasively assess metabolic risk.
Wellness encyclopedia
Nutrition
Macro and micronutrients, fasting protocols, ancestral diets.
02 / EncyclopediaSleep & Circadian
Sleep architecture, light exposure, chronobiology.
03 / EncyclopediaMeditation
Concentration, mindfulness, and non-dual traditions.
04 / EncyclopediaBreathwork
Pranayama, Wim Hof, box breathing, CO2 tolerance.
05 / EncyclopediaBiohacking
Cold, heat, light, HRV, wearables, optimization.
06 / EncyclopediaChakra Systems
Subtle energy centers and somatic mapping.
07 / EncyclopediaCrystals & Minerals
Mineralogy and traditional uses of crystals.
08 / EncyclopediaAstrology
Western and Vedic systems, transits, archetypes.