# Trend lines: The tool that EVERYONE uses but few master

Have you seen a trader drawing lines on charts as if it were a guessing game, right? Those are trend lines, and yes, they are useful... but with nuances.

**The basic concept:**
An upward trend line connects successive lows in a rising market. A downward one connects the highs in a falling market. They seem simple, but here’s the twist: they are support and resistance levels that indicate where the price is likely to bounce or break.

**The real problem:**
Many traders forget that trend lines are NOT magic. FOMO, greed, and panic can break them in seconds. That’s why professionals NEVER rely on a single indicator. They combine trend lines with moving averages, Bollinger Bands, or RSI to filter out false signals.

**What matters to know:**
- Bounce on bullish line = keep buying (probably)
- Break of bullish trendline = trend reversal alert
- The same in reverse for bearish lines

**The essence:** Trend lines are a compass, not a treasure map. Use them as confirmation, not as the sole reason to enter or exit. Combine them with volume, market structure, and sentiment. That is serious trading.