Is a high Stress Index a recommendation to read more?

It is a recommendation to spend more attention if you have it. On low-Stress days the brief is the whole exercise. On high-Stress days the brief is the index and the underlying stories deserve a click.

How does this differ from How Mad Should I Be?

Mad measures emotional warrant; Stress measures cognitive load. A day can be high-Mad / low-Stress (one big story, all eyes on it) or low-Mad / high-Stress (eight categories all moving at once but none of it world-historic). The pair is more informative than either alone.

Why publish a measure of news fatigue?

Because pretending every day is equally urgent is what built the doomscrolling habit. If we can label the days that genuinely demand attention, the other days get to be normal.

What is the News Stress Index?

The News Stress Index measures one thing: how much mental work it would take a non-specialist reader to keep up with the day. It is not a measure of how bad the news is — bad news can be simple and complicated news can be neutral. It is a measure of the day's cognitive load.

Three inputs feed it. Criticality concentration is the share of the top fifteen surfaced stories that score 8 or higher on our internal criticality scale; a day where ten of the top fifteen score 8+ is a high-load day regardless of subject. Topic dispersion counts how many of our eight categories are simultaneously running a top-tier story; a day where seven of the eight have a major development is more taxing than a day dominated by a single topic. Update tempo measures how often surfaced stories receive material updates during the ingest cycle.

We publish it because reading the news has costs, and the cost is not constant. A 2 on the index means the day is asking little of you — read the brief, get on with your life. A 6 means the day has several developing threads worth tracking, and the brief will reward a second read. A 9 means the day is the kind of day where it is reasonable to clear an hour and follow it in real time. Most days are between 3 and 5.

The Stress Index sits next to How Mad Should I Be? on the homepage as a deliberate pair. One measures the emotional temperature; the other measures the workload. Together they tell you what kind of day it is — slow and easy, busy but normal, or actually-clear-your-schedule serious.

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