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Overview

Every strain profile on High IQ and thisiswhyimhigh.com is built from structured data covering the strain’s type classification, genetic lineage, chemical profile, effects, medical uses, and more. This guide explains how that data is organized, where it comes from, and what each field means. The platform currently tracks 16,000+ cannabis strains — one of the largest curated strain databases available.

Strain Types

Strains are traditionally classified into three types based on the plant’s physical characteristics and geographic origins. While modern research has shown these categories are imperfect predictors of effects, they remain widely used in the industry and provide a useful starting point.

Sativa

Origin: Equatorial regions (Southeast Asia, Central America, Africa)Plant: Tall, narrow leaves, longer flowering timeTraditional association: Energizing, uplifting, cerebral effectsBest for: Daytime use, creativity, social activities

Indica

Origin: Hindu Kush mountain region (Afghanistan, Pakistan, India)Plant: Short, bushy, broad leaves, shorter flowering timeTraditional association: Relaxing, sedating, body-focused effectsBest for: Evening use, pain relief, sleep

Hybrid

Origin: Cross-breeding of sativa and indica geneticsPlant: Varies widely depending on parent strainsTraditional association: Balanced mix of sativa and indica effectsBest for: Depends on the specific cross and dominant genetics
Modern cannabis research (2025) has debunked the idea that indica and sativa labels reliably predict effects. After decades of cross-breeding, nearly all commercial strains are genetic hybrids. The chemical profile — terpenes and cannabinoids — is a far better predictor of experience. This is why High IQ developed the High Spectrum Families classification system.

Detailed Type Classification

High IQ goes beyond basic indica/sativa/hybrid with a detailed classification system based on actual composition percentages:
ClassificationCriteriaExample
Pure Sativa100% sativa geneticsDurban Poison
Sativa (95%+)Near-pure sativaThai
Sativa-Dominant Hybrid60-94% sativaBlue Dream (60/40)
Balanced Hybrid40-60% either wayWhite Widow (50/50)
Indica-Dominant Hybrid60-94% indicaGirl Scout Cookies (60/40)
Indica (95%+)Near-pure indicaHindu Kush
Pure Indica100% indica geneticsAfghani
When a strain’s composition data is available (e.g., “70% Sativa / 30% Indica”), the detailed classification is computed automatically. When composition is unknown, the basic type from the database is used.

Genetics and Lineage

Parent Strains

Most cannabis strains are the offspring of two parent strains. The strain profile shows:
  • Parent 1 and Parent 2 — The two strains that were crossed to create this one
  • Breeder — The seed company or cultivator that developed the cross (when known)
  • Year introduced — When the strain first appeared on the market (when documented)
For example, Blue Dream is a cross of Blueberry (indica) and Haze (sativa), creating a sativa-dominant hybrid.

Lineage Trees

Some strains have deep lineage trees spanning multiple generations. High IQ tracks parent-child relationships so you can explore a strain’s genetic ancestry:
1

Grandparent strains

The parents of the parent strains. Gives insight into the deeper genetic heritage.
2

Parent strains

The direct cross that produced the strain. Most influential on the final product’s characteristics.
3

Child strains

Other strains bred from this one. Helps you discover related genetics you might enjoy.

Chemical Profile Data

Each strain’s profile includes chemical data when available, organized into the following categories:

Cannabinoids

  • THC — Primary psychoactive compound. Range given as percentage of dry weight (e.g., 18-24%).
  • CBD — Primary non-psychoactive therapeutic compound. Many recreational strains are under 1%.
  • CBG — The “mother cannabinoid.” Usually under 1% in mature flower.
  • CBN — Oxidation product of THC. Increases in aged flower.
  • CBC — Non-psychoactive anti-inflammatory. Typically under 0.3%.
  • THCV — Appetite suppressant. Higher in some African landrace strains.

Terpenes

Terpene data is presented as a ranked list of the dominant terpenes in the strain’s profile. When concentration percentages are available, they are included. The terpene profile is the primary driver of the strain’s High Family classification. See the full Terpene Guide for details on all 17 tracked terpenes.

Aromas and Flavors

Aromas (what you smell) and flavors (what you taste) are categorized using a standardized taxonomy. Common descriptors include:

Earthy

Soil, forest floor, mushroom

Citrus

Lemon, orange, grapefruit

Berry

Blueberry, strawberry, grape

Pine

Fresh pine, conifer, wood

Diesel

Fuel, chemical, pungent

Floral

Lavender, rose, jasmine

Spicy

Pepper, clove, cinnamon

Sweet

Honey, sugar, vanilla

Effects Data

Effect Categories

Effects are organized into three categories:
CategoryIconDescriptionExamples
MindBrainCerebral and cognitive effectsEuphoric, creative, focused, energetic, giggly, talkative
BodyMusclePhysical and sensory effectsRelaxed, sleepy, hungry, tingly, body high, sedated
MedicalHospitalTherapeutic and medicinal effectsPain relief, stress relief, anxiety relief, insomnia relief, anti-nausea

Medical Uses

Medical use data is further divided into mental health effects (stress relief, anxiety relief, mood elevation, focus, creativity) and body effects (muscle relaxation, pain relief, sleep support, appetite stimulation, anti-inflammatory). Each effect includes an intensity score from 1 to 10.

Activity and Time-of-Day Recommendations

Strains include recommendations for:
  • Best time of day — Morning, afternoon, evening, or night
  • Recommended activities — Creative work, social events, exercise, relaxation, meditation, sleep, and more
  • Activity categories — Grouped by type (physical, social, creative, relaxation, therapeutic)

Where Strain Data Comes From

High IQ aggregates and normalizes data from multiple sources:
1

Database Aggregation

Strain data is collected from public databases, dispensary catalogs, and research publications. Each source contributes different data points — some are strong on genetics, others on terpene testing, others on user-reported effects.
2

AI-Powered Research Pipeline

High IQ uses a multi-stage research pipeline powered by AI to fill gaps in strain data. This includes searching academic databases, analyzing clinical literature, and cross-referencing data points across sources. The pipeline runs on Trigger.dev with 12 specialized tasks.
3

Normalization and Verification

Raw data from different sources uses inconsistent naming, formatting, and scales. The @tiwih/api-normalizers package standardizes everything — normalizing strain types, parsing terpene names, cleaning effect lists, and converting percentages to consistent formats.
4

Quality Gate

AI-powered quality checks validate data consistency, flag outliers (e.g., a strain claiming 50% THC), and ensure that terpene profiles align with reported effects. Strains that do not pass the quality gate are flagged for manual review.
5

Continuous Updates

The database is continuously updated as new strains enter the market, new research is published, and existing profiles are refined. A competitor strain monitoring system tracks major databases weekly to identify new strains to research.

Understanding Strain Scores

Each strain on the platform may include a quality score that reflects the completeness and reliability of its data:
  • Data completeness — Does the strain have genetics, terpenes, cannabinoids, effects, and medical use data?
  • Source diversity — Is the data confirmed across multiple independent sources?
  • Research backing — Are the effects supported by clinical or preclinical research?
  • User consensus — Do user reports align with the documented effects?
A high-scoring strain is not necessarily a “better” strain — it just means the data behind its profile is more complete and reliable. A strain with a lower score may simply be newer or less studied.

Searching and Filtering

On thisiswhyimhigh.com and in the High IQ app, you can search and filter strains by:
  • Name — Full or partial strain name search
  • Type — Sativa, indica, hybrid, or detailed sub-types
  • High Family — Relaxing, Uplifting, Energetic, Relieving, Balancing, Entourage
  • Effects — Filter by specific mind, body, or medical effects
  • Terpenes — Find strains dominated by a specific terpene
  • THC/CBD range — Set minimum and maximum potency thresholds
  • Similar strains — Find strains with similar chemical profiles to one you already enjoy