The Kove Journal

Mendi Headset Review: How It Works and Who It Suits

An honest look at the Mendi Headset: how fNIRS reads blood flow in the front of the brain, what a session is like, how often to train, what the research does and does not say, and who should choose...

Frozin 400 Review: Size, Setup, and Who It Fits

An honest look at the Frozin 400 cold plunge tub: the size inside and out, how the foam insulation holds the cold on ice or a chiller, setup and upkeep, tub only versus the complete system, and who...

Infrared vs Traditional Sauna: Heat, Time, Comfort

How a hot room and an infrared panel heat a body differently, what a session costs in minutes and watts, what the evidence says about each, and how to choose the one you will use three times a week.

Infrared Mats: Amethyst, Tourmaline, and Heating Pads Explained

What an infrared mat actually is, what the amethyst and tourmaline layers really do, how a mat differs from a heating pad and a sauna blanket, and how to read the spec sheet before buying.

Red Light Therapy and Sleep: What the Research Shows

How light sets the body clock, why red is the evening color, what the handful of studies on red light devices and sleep actually found, and how to run evening sessions so they do not backfire.

Best Red Light Therapy Panels for Home Use: 2026 Buyer's Guide

Our panels sorted by the job: cheapest serious entry, half-body and full-body workhorses, the most control, the tabletop pick, and the clinic-scale unit, with lab-measured irradiance and honest com...

Red Light Therapy Specs Explained: Irradiance, Wavelength, Dose

The three numbers on a red light spec sheet that matter, irradiance, wavelength and dose, how to tell an honest irradiance figure from an inflated one, and what LED counts, watts and pulsing ranges...

Meditation Devices Compared by the Problem Each One Solves

Three kinds of meditation device do three different jobs. Light and sound, feedback, and near infrared headsets compared, with the problem each one actually solves.

At-Home Neurofeedback: What It Measures and How to Train

How a forehead headset reads prefrontal blood flow with near infrared light, what the score means and does not mean, and how to get something out of five-minute sessions.

Brainwave Entrainment: How Light and Sound Sessions Work

How pulsing light and layered sound pull brain rhythm toward a target rate, what a session feels like, what the evidence supports, and who should never use flashing light.