Laar (Más de 2200 resultados)

Condición: Like New. Item is in like new condition.

Condición: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condición: very_good. Fast & Free Shipping â" Very Good condition book with a firm cover and clean pages. Shows normal use and some light wear or limited notes markings. A solid, nice copy to enjoy.

Condición: good. Fast & Free Shipping â" Good condition. It may show normal signs of use, such as light writing, highlighting, or library markings, but all pages are intact and the book is fully readable. A solid, complete copy that's ready to enjoy.

Paperback. Condición: Acceptable. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear . It may also be ex-library or without dustjacket. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear . It may also be ex-library or without dustjacket.…

Hardcover. Condición: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

hardcover. Condición: Good.

Condición: acceptable. Fairly worn, but readable and intact. If applicable: Dust jacket, disc or access code may not be included.

Paperback. Condición: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Condición: As New. Signed Copy . Signed/Inscribed by author on title page.

Hardback. Condición: Like New. Sapiens meets Why We Sleep in an evolutionary romp through the science of sleep--and how we can get better rest--by one of the world's leading sleep scientists. We spend roughly a third of our lives in bed, but for millions of us, not all of that time is spent sleeping. We strive for eight hours per night, only to lie awake thanks to stress, our ever-present devices, a new baby, or that 4pm coffee you thought you needed. As sleep scientist and recovering insomniac Merijn van de Laar shows, the struggle with modern insomnia is nothing new. When homo sapiens evolved hundreds of thousands of years ago, when saber-toothed tigers were their biggest nighttime worry, wakefulness served to protect one's tribe at night. Research shows these episodic sleep patterns even gave our ancestors an evolutionary advantage. We can look to their example for guidance in improving our sleep health and understanding our natural circadian rhythm, too: how our sleep patterns change as we age, the benefits of communal sleep, the importance of environmental factors such as temperature and light. While our myriad gadgets may distinguish us from early humans, understanding the ways our brains evolved to rest can chart the course toward a better night's sleep. Drawing from emerging science, archeological research into our ancestors' habits, and close observation of contemporary hunter-gatherer cultures, How to Sleep Like a Caveman explains everything from why we sometimes jerk awake at night--likely a remnant of having slept in trees--to why our efforts to "optimize" our sleep schedules might just be a fool's errand. The result is a surprising, accessible new framework grounded in ancestral health for thinking about sleep--the way we were designed to.  Drawing on the wisdom of our ancestors, you'll discover: Evolutionary Sleep Science: Why our brains evolved to wake up during the night and how that "episodic sleep" was once a survival advantage against saber-toothed tigers. Beyond the 8-Hour Myth: Learn why trying to "optimize" a perfect eight-hour block of sleep might be a fool's errand and what hunter-gatherer societies teach us about flexible sleep patterns. Primal Sleep Instincts: An explanation for why we sometimes jerk awake as we fall asleep--a fascinating remnant from our tree-sleeping ancestors. A New Framework for Rest: Practical guidance on environmental factors like temperature and light, and how to apply ancestral wisdom to improve your modern-day sleep health.…

hardcover. Condición: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Paperback. Condición: Acceptable. reading copy only - damaged/worn/marked/exlibris Standard-sized.

Paperback. Condición: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condición: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condición: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condición: Good. Good - Bumped and creased book with tears to the extremities, but not affecting the text block, may have remainder mark or previous owner's name - GOOD Standard-sized.

Paperback. Condición: Very Good. Background Embossing with Vellum This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. .…

Paperback. Condición: Acceptable. Acceptable - This is a significantly damaged book. It should be considered a reading copy only. Please order this book only if you are interested in the content and not the condition. May be ex-library. PAPERBACK Standard-sized.

Softcover, 132 pages; very good condition, light rubbing to covers; no internal marks. Foreign shipping may be extra.

Condición: Very Good. Former library copy. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Paperback. Condición: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

paperback. Condición: Very Good. Most items will be dispatched the same or the next working day. A copy that has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Paperback. Condición: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Paperback. Condición: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Hardcover. Condición: New. Hardcover. Publisher overstock, may contain remainder mark on edge.

Hardcover. Condición: Very Good. Minimal wear to cover. Pages clean and binding tight. shelf wear. bumped edges. Hardcover.

Paperback. Condición: Very Good. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

Condición: Very Good. Estado de la sobrecubierta: 48234691. 1788949569. 9/9/2026 10:26:09 AM.

paperback. Condición: Very Good. Interior fine. Minor cover-wear. 2001, number line ends with a 2, paperback. 1h.