TruthDeck

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What the research actually says about psychology, happiness, and self-improvement. Every claim cites a study. Nothing here is opinion.

Debunked 8 min read

7 Psychology Ideas That Were Quietly Killed By Science

Growth mindset, grit, the 10,000-hour rule, ego depletion. Ideas people still cite as gospel. Every one of them failed when tested at scale.

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Neuroscience 6 min read

Your Brain Has Two Reward Systems And They Disagree About Everything

Why you dread the phone call, enjoy it, and then dread the next one. The wanting system and the liking system are running different playbooks.

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Well-being 7 min read

The Only 4 Things Proven To Make You Happier

Exercise, relationships, flow, therapy. Not income, not achievements, not a fresh start. After decades of research, this is what moves the needle.

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Behavior Change 7 min read

Why 'Just Start' Is The Worst Advice In Psychology

The problem was never motivation. It was the room. Your environment is designed against you, and no amount of willpower fixes that.

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Philosophy 8 min read

The Comfort Trap: Why Having Everything Makes You Miserable

In 1968, a scientist built a mouse utopia. Unlimited food, no predators, no disease. Within four generations, the colony collapsed. Not from scarcity. From abundance.

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