ひと呼吸 – A breathing timer that visualizes breath through light

Summary: ひと呼吸 converts natural breathing into changing screen brightness, providing a visual breathing timer without goals or instructions to help users focus on their breath.

What it does

It translates breathing patterns into gentle changes in screen brightness, responding to natural breath without requiring user input or targets.

Who it's for

Users seeking a simple tool to center themselves during study or work through mindful breathing.

Why it matters

It reduces cognitive distraction by encouraging focus on the body through breath and light interaction.