Articles
Published guides across sleep, fitness, recovery, and longevity.
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Recovery
Choosing a Red Light Panel
A technical buying guide to consumer LED panels — nm ranges, dual-chip vs quad-chip, irradiance claims, EMF skepticism, and seventeen top-selling panels from desk bricks to full-body fixtures.
· Keersa Editorial Team
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Recovery
Red Light Therapy: Mechanisms and Use Cases
Wavelengths, irradiance, fluence, and the gap between cosmetic masks and clinically meaningful photobiomodulation — plus eleven panels, masks, belts, and mats that map each use case.
· Keersa Editorial Team
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Recovery
The Recovery Protocol: What Actually Improves Recovery
An authoritative overview of recovery practice — sleep and easy movement first, then mechanical tools, compression, light, specialty modalities, and a clear map to every Recovery deep dive.
· Keersa Editorial Team
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Sleep
Wearable vs Clinical Sleep Studies
A clear 2026 guide to rings, watches, and bed sensors versus HSAT, PSG, actigraphy, and MSLT — what each can answer, and when to stop optimizing and get tested.
· Keersa Editorial Team
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Longevity
A Practical Longevity Stack for Non-Obsessives
A calm longevity stack for busy people — sleep, Zone 2, strength, a few measurements, and Amazon tools worth buying before NAD, clocks, or rapamycin.
· Keersa Editorial Team
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Longevity
Strength Training as Longevity Medicine
A practical guide to strength as longevity medicine — muscle, bone, and fall resilience, plus Amazon-reachable dumbbells, kettlebells, bands, and grip tools for a sustainable home setup.
· Keersa Editorial Team
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Longevity
Continuous Monitoring for Aging Metrics
A practical guide to continuous aging metrics — which Amazon-reachable rings, bands, watches, under-mattress sensors, and OTC CGMs actually help you track sleep, HRV, activity, and glucose over months without turning every night into a score panic.
· Keersa Editorial Team
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Longevity
NAD Precursors: NR, NMN, and Reality
A detailed real-world guide to NAD precursors — how NR and NMN differ, what human trials actually measured, bioavailability and quality pitfalls, regulatory whiplash, and how Tru Niagen, NMN brands, stacks, cheap B3, and IV drips compare.
· Keersa Editorial Team
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Longevity
Rapamycin and Longevity Pharmacology
A clear-eyed deep dive into rapamycin (sirolimus) for longevity — how mTOR inhibition works, what mouse and human data actually show, risk framing, and why this remains a clinician-supervised conversation rather than a shopping list.
· Keersa Editorial Team
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Longevity
Zone 2 Training Technology
A practical, relatable guide to Zone 2 training tech — what Zone 2 actually means, how to find it without lab drama, and which heart-rate straps, watches, bike computers, and lactate tools help you build aerobic base for healthspan.
· Keersa Editorial Team
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Longevity
Blood Panels Worth Tracking Annually
A practical guide to annual blood work for longevity — why panels matter more with age, which metabolic and cardiovascular markers earn a yearly slot, and how clinician labs, membership panels, and Amazon at-home kits compare.
· Keersa Editorial Team
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Longevity
DEXA, Visceral Fat, and Body Composition
A deep dive into DEXA body composition for longevity — what the scan measures, why visceral fat matters more than the bathroom scale, how to read a report, and how often retesting is worth the radiation and cost.
· Keersa Editorial Team
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Longevity
VO2 Max as a Longevity Biomarker
A deep dive into VO2 max as a healthspan biomarker — what the mortality evidence shows, how lab testing differs from watch estimates, and eleven measurement paths from metabolic carts to Garmin, Apple Watch, Polar, and free field protocols.
· Keersa Editorial Team
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Longevity
Biological Age Tests Explained
A deep dive into biological age testing — what epigenetic clocks, glycan assays, and blood-based inner-age scores actually measure — plus eleven leading consumer options from TruAge and GlycanAge to InnerAge and DIY PhenoAge.
· Keersa Editorial Team
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Recovery
Active Recovery vs Passive Modalities
A decision framework for recovery after training stress — what active recovery actually is, when passive modalities help symptoms, and how to choose based on the session you just did rather than the gadget you own.
· Keersa Editorial Team
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Recovery
Building a Recovery Toolkit
A staged roadmap for recovery gear — overview of options, purchase priorities, and twelve representative devices from foam rollers and budget guns to panels, boots, float sessions, and late-stage mild HBOT.
· Keersa Editorial Team
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Recovery
Hyperbaric Oxygen for Non-Clinical Users
A deep dive into mild soft-chamber hyperbaric systems for non-clinical buyers — pressure classes, UHMS definitions, safety fault lines, and eleven options from studio sessions to Summit, OxyHealth, and equalization accessories.
· Keersa Editorial Team
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Sleep
The Sleep Protocol: What Actually Improves Sleep
A clear 2026 map of how sleep works — timing, light, temperature, noise, and tracking — and what to fix before you buy another gadget.
· Keersa Editorial Team
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Recovery
Float Tanks and Sensory Deprivation
Flotation-REST for stress and anxiety — what reviews support, where recovery claims outrun data, and twelve access paths from studio sessions to home pods and salt supplies.
· Keersa Editorial Team
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Recovery
PEMFs and Pulsed Electromagnetic Fields
A deep dive into pulsed electromagnetic field devices — mats, wearables, and high-gauss systems — with osteoarthritis and bone-healing evidence lanes and twelve options from Amazon bestsellers to BEMER.
· Keersa Editorial Team