# heart (10-heart.com)

The heart is the organ that pumps blood through the body. People also say heart to mean the center of feeling, courage, or love. They speak of it as what makes someone human and warm.

## What a model may hear
- core data structure (computer science, operating systems): May assume the user means a central queue, kernel, or main loop that keeps a system alive
- heartbeat protocol (distributed systems, networking): May interpret as a periodic signal for health checks, failover, or keepalive messages
- heart symbol in Unicode (text processing, encoding): May treat as U+2665 or related emoji/code points, applying string or display logic
- cardiac simulation (medical modeling, bioinformatics): May invoke physiological models, ECG data, or organ-level simulation parameters
- HEART framework (UX research, Google metrics): May apply the Happiness, Engagement, Adoption, Retention, Task success model for product analysis

## Where people and models part ways
- Says: "The heart of the matter"
  Means: The most important point
  May be taken as: May search for a central processing node or main data object
  Say instead: "What is the main point or key issue"
- Says: "My heart is in it"
  Means: I care deeply and am committed
  May be taken as: May flag for sentiment analysis or emotional state extraction without context
  Say instead: "I am fully committed to this"
- Says: "Heart of the city"
  Means: The central, lively area
  May be taken as: May geocode to a literal cardiac hospital or map to a network topology center
  Say instead: "The downtown or central district"
- Says: "Lose heart"
  Means: Become discouraged
  May be taken as: May interpret as a medical event or system failure in a health monitoring context
  Say instead: "Become discouraged or lose confidence"

## Tips
- Say 'emotionally' or 'figuratively' if you do not mean the organ or a system core
- Specify 'medical' or 'cardiac' when you do mean the body part
- Use 'center' or 'core' for technical main components to avoid the biological echo
- Add 'not a metaphor' if you genuinely want the physiological or hardware sense
- In distributed systems, say 'health check' or 'keepalive' instead of 'heartbeat' if that is what you mean

## Often confused with
- hart: An old word for a stag; models may not correct the spelling
- hearth: A fireplace; home and warmth, not the body
- heat: Temperature or intensity, no emotional or cardiac link
- heartbleed: A specific OpenSSL vulnerability; models may overreact to security context
- heartbeat: A technical signal protocol, more specific than the general organ
- core: The technical center of a system, without the emotional or biological layers