Science

MTHFR Test at Home: What Your Results Actually Mean
MTHFR Test at Home: What Your Results Actually Mean
MTHFR Test at Home: What Your Results Actually Mean The honest version, mechanism first, no hype and no dismissal. What C677T and A1298C actually do, how a cheek swab works,... Read more...
At-Home Cholesterol Test: What to Look for in a Kit
At-Home Cholesterol Test: What to Look for in a Kit
  Heart health testing guide At-Home Cholesterol Test: What to Look for in a Kit “At home” can mean two different things. You might read a number yourself, or collect... Read more...
Genetic Methylation Test: What It Shows and How to Choose One
Genetic Methylation Test: What It Shows and How to Choose One
  Genomics & At-Home Testing Genetic Methylation Test: What It Shows and How to Choose One A genetic methylation test can be useful when you want more context around MTHFR... Read more...
STD Test at Home: A Private Guide to At-Home STI Screening
STD Test at Home: A Private Guide to At-Home STI Screening
  Sexual Health & At-Home Testing STD Test at Home: A Private Guide to At-Home STI Screening Buying an STD test at home can remove the waiting room, but the... Read more...
NAD+ and Longevity: What's Actually Proven in Humans (and What's Still a Mouse Study)
NAD+ and Longevity: What's Actually Proven in Humans (and What's Still a Mouse Study)
  Longevity & Wellness NAD+ and Longevity: What's Actually Proven in Humans (and What's Still a Mouse Study) NAD+ and longevity marketing has a habit of sliding from "raises NAD+... Read more...
BPC-157: What the Research Actually Shows (and Why It's Still Not an Approved Drug)
BPC-157: What the Research Actually Shows (and Why It's Still Not an Approved Drug)
  Longevity & Wellness BPC-157: What the Research Actually Shows (and Why It's Still Not an Approved Drug) BPC-157 has one of the widest gaps between hype and evidence of... Read more...
How to Actually Evaluate a NAD+ Supplement (Most Don't Contain What the Label Says)
How to Actually Evaluate a NAD+ Supplement (Most Don't Contain What the Label Says)
  Longevity & Wellness How to Actually Evaluate a NAD+ Supplement (Most Don't Contain What the Label Says) "Which NAD+ supplement is best" is the wrong first question, because you... Read more...
What Is a NAD Test? How NAD Testing Actually Works
What Is a NAD Test? How NAD Testing Actually Works
  Longevity & Biomarker Testing What Is a NAD Test? How NAD Testing Actually Works A NAD test sounds simple: measure your NAD levels and see if they are “good”... Read more...
How to Increase NAD Levels Naturally: What Actually Helps
How to Increase NAD Levels Naturally: What Actually Helps
  Longevity & Wellness How to Increase NAD Levels Naturally: What Actually Helps If you want to increase NAD levels naturally, the useful question is not “what hack raises NAD... Read more...
Biological Age Tests, Explained: What Each One Actually Measures
Biological Age Tests, Explained: What Each One Actually Measures
  Longevity & Wellness Biological Age Tests, Explained: What Each One Actually Measures "Biological age test" isn't one product. It's a category name for five genuinely different measurements, and two... Read more...
Are At-Home Blood Tests as Accurate as Lab Draws?
Are At-Home Blood Tests as Accurate as Lab Draws?
  Are At-Home Blood Tests as Accurate as Lab Draws? What peer-reviewed research says about finger-prick samples, which markers are reliable, and the accuracy factor most people overlook. CLIA-certified labResults... Read more...
What Is a CLIA-Certified Lab? What It Means for Your At-Home Test
What Is a CLIA-Certified Lab? What It Means for Your At-Home Test
  What Is a CLIA-Certified Lab? What It Means for Your At-Home Test Short answer: A CLIA-certified lab is a laboratory that holds a federal certificate confirming it meets national... Read more...
At-Home Testosterone Test: How It Works and How to Choose One
At-Home Testosterone Test: How It Works and How to Choose One
  At-Home Testosterone Test: How It Works and How to Choose One What an at-home testosterone test measures, the right time to collect your sample, how accurate it is, and... Read more...
NAD Test Kits: How to Measure Your NAD+ Levels at Home
NAD Test Kits: How to Measure Your NAD+ Levels at Home
Shop testsHow it works Longevity & NAD NAD Test Kits: How to Measure Your NAD+ Levels at Home What a NAD test kit measures, how at-home testing works, what the... Read more...
NAD+ vs NADH vs NAD Total: What the Three Numbers on Your Test Mean
NAD+ vs NADH vs NAD Total: What the Three Numbers on Your Test Mean
NAD+ vs NADH vs NAD Total: What the Three Numbers on Your Test Mean Medically reviewed for accuracy. Last updated July 3, 2026. Short answer: NAD+ and NADH are two... Read more...
NAD+ vs NADH vs NAD Total: What the Three Numbers on Your Test Mean
NAD+ vs NADH vs NAD Total: What the Three Numbers on Your Test Mean
NAD+ vs NADH vs NAD Total: What the Three Numbers on Your Test Mean Medically reviewed for accuracy. Last updated July 3, 2026. Short answer: NAD+ and NADH are two... Read more...
How to Read Your Blood Test Results: A Plain-English Guide
How to Read Your Blood Test Results: A Plain-English Guide
    How to Read Your Blood Test Results: A Plain-English Guide Short answer: To read your blood test results, look at each line as four pieces of information: the... Read more...
NMN vs NR: Which NAD+ Precursor Actually Works? An Evidence-First Comparison
NMN vs NR: Which NAD+ Precursor Actually Works? An Evidence-First Comparison
NMN vs NR: Which NAD+ Precursor Actually Works? An Evidence-First Comparison Medically reviewed for accuracy. Last updated June 2026. Short answer: NMN and NR are both vitamin B3 relatives that... Read more...
At-Home Thyroid Testing: What to Measure, Who Runs the Lab, and How to Get an Accurate Result
At-Home Thyroid Testing: What to Measure, Who Runs the Lab, and How to Get an Accurate Result
At-Home Thyroid Testing: What to Measure, Who Runs the Lab, and How to Get an Accurate Result Quick answer: A good at-home thyroid test comes down to three things. First,... Read more...
A finger-prick collection tube next to a standard venous blood draw tube, comparing at-home and clinic sample methods
Are At-Home Blood Tests as Accurate as Lab Draws?
  Shop testsHow it works At-Home Blood Testing Are At-Home Blood Tests as Accurate as Lab Draws? What peer-reviewed research says about finger-prick samples, which markers are reliable, and the... Read more...
NAD Test Kits: How to Measure Your NAD+ Levels at Home
NAD Test Kits: How to Measure Your NAD+ Levels at Home
  Shop testsHow it works Longevity & NAD NAD Test Kits: How to Measure Your NAD+ Levels at Home What a NAD test kit measures, how at-home testing works, what... Read more...
How Fast Can You Get At-Home Lab Results?
How Fast Can You Get At-Home Lab Results?
Shop testsHow it works At-Home Blood Testing How Fast Can You Get At-Home Lab Results? The realistic timeline for mail-in results, what actually controls the speed, and how to get... Read more...
At-Home Blood Testing: The Complete Guide (2026)
At-Home Blood Testing: The Complete Guide (2026)
Style: Bold Minimal Shop testsHow it works At-Home Blood Testing At-Home Blood Testing: The Complete Guide (2026) How it works, when finger-prick results are accurate, what a CLIA-certified lab means,... Read more...
Can You Really Boost Brain NAD+? What New Human Studies Suggest
Can You Really Boost Brain NAD+? What New Human Studies Suggest
If you spend five minutes in longevity Twitter you’d think everyone is “raising NAD+” and unlocking infinite energy. The reality is both more interesting and more grounded: we now have... Read more...
Benefits of NAD⁺ Therapy
Benefits of NAD⁺ Therapy
You eat well, move your body, try to sleep, and keep stress in check—but still feel like your battery never quite hits 100%. That’s where NAD⁺ therapy enters the chat.... Read more...
Micronutrients for Mental Health: What Actually Helps (and How)
Micronutrients for Mental Health: What Actually Helps (and How)
We talk a lot about therapy and meds (both vital). But your brain’s chemistry is also built from… chemistry. This narrative review breaks down four low-lift nutrients that keep showing... Read more...
The Safety and Anti-Aging Effects of Nicotinamide Mononucleotide (NMN) in Human Trials — 2023 Update
The Safety and Anti-Aging Effects of Nicotinamide Mononucleotide (NMN) in Human Trials — 2023 Update
If aging had a dashboard, NAD+ would be the fuel gauge. It dips as we get older, and when it’s low, cells run sloppier—energy wanes, repair lags, inflammation smolders. Nicotinamide... Read more...
NAD+, Stacks, and Healthspan: What the Science Actually Says (and How to Use It Safely)
NAD+, Stacks, and Healthspan: What the Science Actually Says (and How to Use It Safely)
NAD+ is a cellular coenzyme that supports energy metabolism, DNA repair, circadian rhythm, and stress responses. Levels decline with age. A 2023 peer-reviewed review in Nutrients proposes that combining NAD+... Read more...
Collagen Peptides May Ease Daytime Fatigue and Boost Vigor: What a 2024 RCT Found
Collagen Peptides May Ease Daytime Fatigue and Boost Vigor: What a 2024 RCT Found
In a double-blind, placebo-controlled trial, healthy but easily-fatigued adults who took 10 g/day collagen peptides for 8 weeks reported less fatigue and more vigor on a validated mood scale (POMS... Read more...
Micronutrients, Energy & Brain Power: What the Science Really Says
Micronutrients, Energy & Brain Power: What the Science Really Says
A large narrative review in Nutrients synthesizes biochemical and clinical evidence showing that specific vitamins and minerals (notably B-vitamins, vitamin C, iron, magnesium, and zinc) are required to turn food... Read more...
After Ozempic, Meet NAD+: The Next Big Biohack
After Ozempic, Meet NAD+: The Next Big Biohack
Move over, Ozempic. The latest wellness fix lighting up biohacking circles, fashion sets, and Hollywood group chats is NAD+—often delivered by IV drips, shots, or supplements. From bed-bound to “back... Read more...
Food Allergy vs. Food Sensitivity: Is There a Difference?
Food Allergy vs. Food Sensitivity: Is There a Difference?
Digestive system vs. immune system As it turns out, there is a big difference between a food allergy and a food sensitivity. Food allergies affect the immune system, while food... Read more...
What Are the Hallmarks of Aging?
What Are the Hallmarks of Aging?
Key takeaways Scientists describe aging as the result of 12 interconnected cellular processes—from DNA wear-and-tear to chronic inflammation. This framework offers a roadmap for supporting healthy aging through measurement, habits,... Read more...