Short answer: Aries aren't inherently angry, but they're wired for passion, speed, and blunt honesty. If you've met an Aries who flares up, you're not imagining it - this sign rules beginnings and heat. They react fast, speak plainly, and cool down just as quickly. Think spark, not wildfire: their 'anger' is usually intensity and urgency, not malice.
Context matters: an Aries who feels blocked, ignored, or micromanaged is more likely to snap. Give them clear goals, rapid feedback, and room to move, and you'll see courage instead of conflict. If you're Aries, channel the surge - name the feeling, take a 10-minute reset, then act. Directness plus timing turns heat into leadership, not arguments.