Negativity bias is the tendency for negative events, emotions, and information to have a disproportionately greater psychological impact than positive ones of equal intensity.

The Asymmetry

Research suggests negative experiences register with roughly twice the psychological weight of positive ones. Losing $100 hurts about twice as much as winning $100 feels good.

Why We Evolved This Way

In ancestral environments, threats required immediate attention. A missed opportunity to eat cost you one meal. A missed predator cost you your life. The brain evolved to prioritize threats over opportunities.

Modern Consequences

• News consumption: Negative news gets more clicks — media is incentivized to amplify it
• Relationships: One harsh criticism can undo dozens of compliments
• Performance reviews: Employees remember negative feedback far longer than positive
• Risk-taking: Fear of loss suppresses rational risk-taking and wealth-building

Counterweight

Deliberately track positive experiences. Gratitude practices work partly by forcing the brain to override its default negativity weighting.

Reference:

Wikipedia: Negativity Bias

https://en.wikipedia.org/wiki/Negativity_bias