Our intelligence is not as fixed or certain as we might believe.
Habitual choices, shadows from the past, hidden wounds — all can leave deeper marks on our cognition than we imagine.
From the things we eat to the company we keep, from sleepless nights to our emotions, our minds are constantly in flux.
These 12 studies reveal common ways our intelligence can be nudged downwards (see also: 10 Simple Lifestyle Tweaks That Can Raise Your IQ).
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