Leafy greens harvested at the peak of their natural growing season contain measurably higher concentrations of vitamins, polyphenols and mineral cofactors than the same vegetables shipped across hemispheres to reach supermarkets out of season.
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Walking slowly among conifers and broad-leaved trees exposes the respiratory system to a cocktail of airborne plant-derived compounds called phytoncides, and measured blood samples confirm these compounds boost natural killer cell activity.
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Stepping outside within the first thirty minutes of waking and spending ten minutes in direct natural light sets a biochemical timer in the hypothalamus that governs cortisol release, melatonin onset and sleep depth for the next twenty-four hours.
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