Psychology and Simplicity: Keep It Simple (KISS)

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By David Hennessy, Clinical Psychologist

Cartoon-style person meditating cross-legged, with calming illustrations of nature and the phrase “Keep It Simple (KISS): Why Simplicity Works” above.

“Simplicity is the ultimate sophistication.” — Leonardo da Vinci

Psychology and Simplicity: We humans tend to make things complicated. Whether it’s relationships, decisions, work, or our own emotions, we overthink, overanalyse, and overexplain. But usually, the clearest path forward isn’t the most complex—it’s the simplest.

Our Brains Prefer Simple

When life feels overwhelming, clarity is like oxygen. When we simplify, we reduce mental clutter—and that makes space for action, calm, and clear thinking.

Also, behaving intentionally with simplicity moves us away from a sense of overwhelm and soothes our autonomic nervous system. This moves us mentally and physically towards a state of calm and safety.

Psychology and Simplicity: In psychology, some of the most effective approaches are built on simple, memorable ideas:

  • Breathe.
  • Notice your thoughts.
  • Accept what you can’t control.
  • Focus on what matters.
  • Pay attention to what you’re sensing.
  • Feel your bottom on the chair.
  • Feel your feet on the ground.
  • What do I need right now?
  • What’s one small step I can take?
  • What really matters to me in this moment?

These aren’t just helpful in therapy rooms—they’re life tools. Whether you’re managing stress at work, navigating a tough relationship, or dealing with self-doubt, a clear, grounded message can cut through the noise.

Minimalist background with the quote “Simplicity is the ultimate sophistication” by Leonardo da Vinci in centered sans-serif text.

Psychology and Simplicity: There’s Wisdom in Resisting the Urge to Overcomplicate

Simplicity won’t solve everything, but it usually reveals the path forward. Not because it’s easy, but because it’s clear.

So next time you feel stuck, overwhelmed, or tangled in your own thoughts, try this: take a breath, strip it back, and keep it simple.

Reference:
“Simplicity is the ultimate sophistication” — Leonardo da Vinci.
Inspired by the KISS principle (Keep It Simple), widely used in design and psychology to promote clarity and efficiency.
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Check out my recent posts: https://hennessyclinicalpsychology.com/hennessy-clinical-psychology-recent-posts/

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