Confirmation Bias
You believe stretching prevents injuries.
You search online and find an article saying stretching prevents injuries.
Case closed—right?
Not necessarily.
The Trap
Confirmation bias is our tendency to notice, remember and favor information that supports what we already believe—while overlooking evidence that challenges it.
We rarely do this deliberately. Our brains simply enjoy being right.
Once we form an opinion about a supplement, treatment, diet, or exercise, we naturally pay more attention to success stories that confirm it. Contradictory results suddenly seem less convincing, less relevant, or somehow “different.”
Example
Imagine that you believe a particular supplement gives you more energy.
On the days you feel great, you think:
“It’s working!”
On the days you feel tired, you blame poor sleep, stress, work or the weather.
The supplement receives credit for every good day—but never responsibility for a bad one.
That does not prove the supplement is ineffective. It means your observations may not be as objective as they feel.
The Better Question
Instead of asking:
“Can I find evidence that supports what I believe?”
Try asking:
“What evidence would make me change my mind?”
Then deliberately look for high-quality information from both sides.
Takeaway
We are all excellent detectives when searching for evidence that proves us right.
The harder—and more useful—skill is investigating the possibility that we might be wrong.
Do not just test your conclusion. Try to challenge it.
The RiKKE Rule
Be curious.
Question assumptions.
Follow evidence.
Stay willing to change your mind.
Rikke Johansen
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