# HAVIT Blog

> Science-backed wellness guidance — 1,086 articles on habits, sleep, nutrition, hydration, and movement, across 10 languages. AI-assisted research, human-reviewed by HAVIT Editorial Team. Published by AI Connect Inc.

HAVIT Blog turns peer-reviewed studies and clinical guidelines into actionable, multilingual content. Every article passes a four-stage editorial workflow before publication: AI-drafted from primary sources → human fact-check against listed citations → medical advisory review for YMYL categories → publish with verified `last_updated` date. Articles cite 4–6 verifiable references (Crossref DOIs + PubMed PMIDs); ~90% of references link to peer-reviewed sources.

The publisher, AI Connect Inc., is a Seoul-based company digitalizing premium metabolic health: care that previously required expensive equipment, specialist clinics, and dedicated coordinators, now accessible to anyone with a smartphone via HAVIT — its core product.

## Categories

The blog organizes content into 15 categories. 10 categories are classified as YMYL (Your Money, Your Life) per Google Search Quality Rater Guidelines §3.2, and use `MedicalWebPage` schema.

- [Diet & Nutrition](https://blog.aihavit.com/en): protein needs, GLP-1 weight loss, evidence-based supplements
- [Sleep & Recovery](https://blog.aihavit.com/en): sleep efficiency protocols, HRV interpretation, recovery scores
- [Exercise & Activity](https://blog.aihavit.com/en): training volume, METs-based calorie burn, VO2max optimization
- [Weight & Metabolism](https://blog.aihavit.com/en): metabolic adaptation, plateau breakthroughs, BMR/TDEE
- [Medication Guide](https://blog.aihavit.com/en): GLP-1 receptor agonists (Ozempic/Wegovy/Mounjaro), drug interactions
- [Health & Conditions](https://blog.aihavit.com/en): non-diabetic CGM, hypermobility, lichen planus
- [Mental Health & Stress](https://blog.aihavit.com/en): anxiety, stress physiology, sleep impact
- [Gut Health & Microbiome](https://blog.aihavit.com/en): fiber diversity, FODMAP, gut-brain axis
- [Longevity & Healthy Aging](https://blog.aihavit.com/en): biological age tests, NMN/rapamycin, blue zones
- [Hydration & Beverages](https://blog.aihavit.com/en): caffeine half-life, electrolyte balance
- [Tracking & Insights](https://blog.aihavit.com/en): wearables (Apple Watch, Garmin, Whoop, Oura), CGM
- [Mindset & Motivation](https://blog.aihavit.com/en): habit formation, accountability partners, behavior change
- [Lifestyle Habits](https://blog.aihavit.com/en): biohacking (cold plunge, sauna, red light), habit stacking
- [Personalized Strategies](https://blog.aihavit.com/en): age/sex/goal-specific protocols
- [Situational Tips](https://blog.aihavit.com/en): travel, holiday, shift work, illness

## Interactive Tools

Free calculators with cited formulas, no ads, no signup:

- [BMR + TDEE Calculator](https://blog.aihavit.com/en/tools/bmr): Mifflin-St Jeor equation, daily calorie baseline
- [Protein Needs Calculator](https://blog.aihavit.com/en/tools/protein): grams per day by weight + goal (ISSN 2017 standard)
- [Daily Water Intake Calculator](https://blog.aihavit.com/en/tools/water): NAM 2004 hydration formula
- [Caffeine Cutoff Calculator](https://blog.aihavit.com/en/tools/caffeine): half-life simulation for sleep protection
- [Sleep Cycle Calculator](https://blog.aihavit.com/en/tools/sleep-cycle): optimal bedtime for target wake time
- [Exercise Calorie Burn Calculator](https://blog.aihavit.com/en/tools/exercise-calories): METs-based burn by activity type

## Editorial Trust

- [About HAVIT Blog](https://blog.aihavit.com/en/about): publisher, mission, contact
- [Editorial Policy](https://blog.aihavit.com/en/editorial-policy): AI scope, human review workflow, reviewer credentials, corrections policy
- Publisher: AI Connect Inc. (Seoul, South Korea) — sole legal entity responsible for all content
- Editorial team: HAVIT Editorial Team, reviewed by HAVIT Medical Advisory (medicine, pharmacology, nutrition science, public health)
- Corrections: verified within 7 business days; `last_updated` date set on revision

## Languages

Articles are available in 10 languages with hreflang alternates and full localization:

- English (`/en`)
- Korean / 한국어 (`/ko`)
- Japanese / 日本語 (`/ja`)
- Chinese Simplified / 简体中文 (`/zh`)
- Chinese Traditional / 繁體中文 (`/zh-tw`)
- Spanish / Español (`/es`)
- Brazilian Portuguese / Português (`/pt-br`)
- Indonesian / Bahasa Indonesia (`/id`)
- German / Deutsch (`/de`)
- French / Français (`/fr`)

## Structured Data

- `MedicalWebPage` schema for YMYL articles (10 categories above)
- `Article` schema for non-YMYL articles
- `Organization` schema (AI Connect Inc.) with `Person` author/reviewer
- `AboutPage` + `WebPage` schemas for About / Editorial Policy

## Optional

- [Sitemap](https://blog.aihavit.com/sitemap.xml): 10,800+ URLs (article × lang × hreflang alternates)
- [RSS Feed](https://blog.aihavit.com/rss.xml): latest articles
- [HAVIT App](https://app.aihavit.com/): the wellness companion app this blog supports