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About Jonas Teller
Jonas Teller is the Psychology & Behavior editor at Know This Now, where he explores the hidden forces that drive the way we think, feel, and act. With a background in behavioral science and a decade spent writing about cognitive research for general audiences, Jonas specializes in making the unconscious visible — revealing the mental shortcuts, social patterns, and emotional quirks that shape everyday life. His writing is sharp, surprising, and impossible to stop thinking about.
What Is the Halo Effect and How Does One Good Trait Skew Judgment?
Posted inPsychology & Behavior

What Is the Halo Effect and How Does One Good Trait Skew Judgment?

Discover how one good trait can influence our perception of others and skew our judgment, known as the 'Halo Effect'.
Posted by Jonas Teller June 3, 2026
What Is the Sunk Cost Fallacy and Why Is It So Hard to Let Go?
Posted inPsychology & Behavior

What Is the Sunk Cost Fallacy and Why Is It So Hard to Let Go?

Explore why we struggle to abandon endeavors by understanding the sunk cost fallacy, a common cognitive bias that impacts our decision-making.
Posted by Jonas Teller June 2, 2026
What Is Choice Overload and Why Can Too Many Options Backfire?
Posted inPsychology & Behavior

What Is Choice Overload and Why Can Too Many Options Backfire?

Explore the concept of choice overload and understand how having too many options can sometimes lead to frustration and indecision.
Posted by Jonas Teller May 29, 2026
What Is Negativity Bias and Why Do Bad Experiences Stick Longer?
Posted inPsychology & Behavior

What Is Negativity Bias and Why Do Bad Experiences Stick Longer?

Explore why negative experiences linger more than positive ones and how this 'negativity bias' shapes our perceptions and decisions.
Posted by Jonas Teller May 29, 2026
What Is Rumination and Why Can’t Some Thoughts Let Go?
Posted inPsychology & Behavior

What Is Rumination and Why Can’t Some Thoughts Let Go?

Explore why certain thoughts linger through the science of rumination, its effects, and strategies to manage it.
Posted by Jonas Teller May 28, 2026
Why Do We Remember Some Embarrassing Moments So Vividly?
Posted inPsychology & Behavior

Why Do We Remember Some Embarrassing Moments So Vividly?

Discover why embarrassing moments linger in memory, influenced by emotional intensity and cognitive biases.
Posted by Jonas Teller May 27, 2026
Why Do Small Rewards Keep Us Hooked on Certain Behaviors?
Posted inPsychology & Behavior

Why Do Small Rewards Keep Us Hooked on Certain Behaviors?

Explore how small rewards can drive our behaviors, keeping us engaged in habits like checking notifications or indulging in junk food.
Posted by Jonas Teller May 27, 2026
Why Do People Blame Personality More Than Situation?
Posted inPsychology & Behavior

Why Do People Blame Personality More Than Situation?

Discover why we often blame personality over situation in explaining behavior, and understand the psychological principles behind this common bias.
Posted by Jonas Teller May 22, 2026
Why Do People Conform Even When They Privately Disagree?
Posted inPsychology & Behavior

Why Do People Conform Even When They Privately Disagree?

Explore the psychology behind conformity and discover why people often go along with the group even when they disagree privately.
Posted by Jonas Teller May 21, 2026
Why Do People Assume Others Notice Them More Than They Do?
Posted inPsychology & Behavior

Why Do People Assume Others Notice Them More Than They Do?

Discover why we often overestimate how much attention others pay to us, uncovering the psychological phenomenon known as the spotlight effect.
Posted by Jonas Teller May 20, 2026

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