According to Walker, healthy sleep is defined by four specific "ingredients":
Digital libraries like Academia.edu often host PDFs of the Spanish translation. Por QuГ© Dormimos Matthew Walker epub
The book divides the benefits of sleep into two main categories: According to Walker, healthy sleep is defined by
It restocks the immune system (increasing natural killer cells), fine-tunes metabolism, and regulates appetite by balancing the hormones leptin and ghrelin. IV. The Science of Dreaming (REM Sleep) According to Walker
Limit exposure to blue light (screens) an hour before bed to allow melatonin production.
Walker highlights dreaming as a "virtual reality" space where the brain integrates past and present knowledge to inspire creativity. REM sleep also acts as "overnight therapy," taking the "sting" out of painful emotional memories. Walker provides actionable tips to improve sleep quality: