Attention and processing speed fluctuate with sleep, stress, caffeine, and even time of day. A single marathon session tells you more about that hour than about how you are trending across weeks. Short blocksālike the Daily Challengeāare easier to repeat, which means more dots on the chart and a clearer story.
Pair a session with something you already do: right after coffee, before email, or after a walk. The goal is not to max out every time; it is to show up so your brain gets repeated exposure to the same demand without burning out.
When you save results to an account, look for gentle slopes and streaks, not every-day perfection. A bad day after a late night is normal. A month of data says more than any one score on this site.
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