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The Bio-Hacker's Toolkit: Top Tech & Gear for Health Optimization in 2025

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Ready to take control of your biology? Biohacking is about using data, science, and technology to upgrade your physical and mental performance. This curated toolkit contains the most effective and cutting-edge gear I've researched and recommend for a...
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Wearable Technology: Track Your Data, Optimize Your Life

If you aren't tracking, you're just guessing. Modern wearable technology goes far beyond counting steps—it provides deep insights into your body's most important metrics. By monitoring your sleep quality, Heart Rate Variability (HRV), recovery, and d...

 
Merrilee Klusmann profile picture
I've worn a lot of fitness trackers, but the Oura Ring is the one I truly can't live without, and it’s because it focuses on what actually matters: my recovery. Every single morning, it gives me a 'Readiness Score' from 0-100. This number, based on m...
Oura Ring Gen 3: Horizon
 
Merrilee Klusmann profile picture
Oura Ring 4 I’ve been a longtime Oura user, and I just upgraded to the new Oura Ring 4. The leap forward is seriously impressive. While it keeps the same sleek, comfortable design I love, the technology inside has been given a major boost with their ...
Oura Ring 4
 
Merrilee Klusmann profile picture
Which one will you choose?
Oura Ring 3 vs Oura Ring 4: Review by Zdnet
 
Merrilee Klusmann profile picture
While Oura is for overall wellness, WHOOP is for dialed-in performance. It focuses on recovery, strain, and sleep, giving users detailed data on their cardiovascular load and readiness to train. A favorite among athletes and fitness fanatics.
WHOOP
 
Merrilee Klusmann profile picture
Which One Is a Better Choice? Oura vs. WHOOP The best way to answer this is to ask: "What is your primary goal?" Choose the Oura Ring 4 if... You prioritize sleep and overall well-being. Oura's sleep tracking is best-in-class, and its Readiness Score...
WIRED Review: Oura ring vs WHOOP
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Merrilee Klusmann profile picture
Far more than a scale. This device provides segmental body composition (fat/muscle mass in arms, legs, torso), vascular age, and nerve health scores. It's one of the most advanced at-home health monitoring stations available.
Smart scales with cardiovascular and body composition tracking

Metabolic Health: Master Your Blood Sugar with a CGM

Ever wonder why you feel amazing after one meal but exhausted and foggy after another? Your metabolic health is the key. A Continuous Glucose Monitor (CGM) is a small wearable sensor that gives you a real-time window into how your body responds to fo...

 
Merrilee Klusmann profile picture
This is the next frontier of personalized nutrition. A CGM allows you to see in real-time how food affects your blood sugar. Nutrisense provides the sensor and an app with dietician support to help you optimize your metabolic health.  CGM Costs at Nutrisense The CGM costs for the Nutrisense CGM Program at Nutrisense range from $151 to $224/month (discounted from $215 to $270 a month!) and include multiple sensors in each shipment, as well as the option to work 1:1 with a glucose-c...
Continuous Glucose Monitoring (CGM): How Much Does it Actually Cost?
 
Merrilee Klusmann profile picture
Master Your Metabolism with Data If you love data and want to turn your body into a personal food laboratory, Levels is the platform for you. Levels pairs a continuous glucose monitor (CGM) with an incredibly powerful and intuitive app that helps you...
Levels Health CGM
 
Merrilee Klusmann profile picture
What you don't measure, you can't improve." InsideTracker analyzes your blood for dozens of biomarkers (from hormones to vitamins) and provides science-backed recommendations to optimize them. It's a truly personalized health roadmap.
InsideTracker Blood Test

Cold Therapy: Build Resilience with Cold Plunging

Ready to unlock a new level of mental and physical resilience? Cold plunging, or cold water immersion, is a powerful practice used by elite athletes and wellness experts to dramatically reduce inflammation, speed up muscle recovery, and boost mood. E...

 
Merrilee Klusmann profile picture
Cold exposure is a powerful tool for building resilience and reducing inflammation. The Ice Barrel has a recognizable, upright design that makes it easy to get in and out of. It’s a high-ticket item that is a visual statement for any biohacker
Ice Barrel- $$ Mid Range
 
Merrilee Klusmann profile picture
This is the ultimate "no-excuses" entry point into the world of cold plunging. For a fraction of the cost of a hard-sided barrel, the Ice Pod gives you a fully insulated, easy-to-use tub that you can set up in minutes. It's lightweight, portable, and...
The Pod Company- $ Entry Point purchase
 
Merrilee Klusmann profile picture
This is the ultimate upgrade for someone who is serious about making cold plunging a daily, effortless habit. The Plunge is an all-in-one, self-contained unit with powerful cooling, filtration, and sanitation. You simply set your desired temperature ...
Plunge | Cold Plunge Tubs $$$ High End