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unlike Elo, TrueSkill can handle teams. To do this, it assumes the performance of the team is the sum of its players’ performances.
TrueSkill Part 1: The Algorithm
DJ Rich
In this later stage of life, the [amount of time spent sleeping is associated with cognitive function](https://bigthink.com/health/sleep-cognitive-decline/), as measured by spatial navigation abilities, but this relationship is defined by a U-shaped curve. That is, older people who sleep for 7 hours per night perform best, while those who sleep for just 5 hours performed significantly worse, and those who sleep for 10 hours performed worse still.
Sleep Duration Clearly Divides Adult Lifespan Into 3 Phases
Big Think
Recent research has shown that DFA alpha 1 crosses below 0.75 at your aerobic threshold [1] and below 0.5 at your anaerobic threshold [2]. For a more detailed explanation, check our [in-depth blog post about DFA alpha 1](https://aiendurance.com/blog/dfa-alpha-1-thresholds-from-heart-rate-variability).
The DFA Alpha 1 App for Threshold Tracking
aiendurance.com
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