And then, with Maria still talking and the taste of wild basil in my mouth, darkness falls softly over the island.

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He wants to complete Kona in 11 hours before darkness falls ("NO GLOWSTICKS" is a Kona mantra, since runners are given glow sticks as night falls).

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When darkness falls, the gland produces more melatonin, which promotes sleep.

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Peak falls on trough to create a core of darkness along the lens's central axis.

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