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“Cheryl is very understanding, personable and helpful. She actively listened and cared about my journey to sleep wellness. Sleep diaries and relaxation exercise worksheets gave me a clear understanding of my sleep patterns and with helpful information and simple, easy to implement tools, I was able to make small changes that can become part of my daily routine. I’ve really benefited from Cheryl’s knowledge and advise, and I have really enjoyed our sessions.”

— Alana

My story

During my career I have mainly worked in positions within Human Resources. That was what I found most fascinating: working with people. In my last salaried job I worked as an HR advisor at an oil and gas company. The workload was very high here and I often encountered people who suffered from stress and therefore suffered from physical and mental complaints. I found myself giving them solicited and unsolicited tips about their way of life. Health and wellbeing have always been of great interest to me and I also listened to a lot of podcasts about this in my spare time. This is still the case by the way 😉.

I had never thought before that sleep was so important. My eyes were opened by a podcast in which Matthew Walker, a researcher and professor of neuroscience, was interviewed about his book 'Why we sleep'. Being so inspired, I started reading his book to learn more about this fascinating subject. Once I started reading the book, a flame ignited within me. I had to start sharing this information with others. And so my sleeping adventure began. I decided to end my career in business and retrained through education, workshops and training. In 2023 I founded my company Revitalizzze and started as a sleep coach.

BornMatthew Paul Walker
1972 or 1973 (age 49–50)^[2]
Liverpool, EnglandAlma mater

• University of Nottingham (BSc)

• Newcastle University (PhD)

Known forWhy We SleepScientific careerFieldsSleep^[1]InstitutionsHarvard University
University of California, BerkeleyThesisA psychophysiological investigation into fluctuating levels of consciousness in neurodegenerative dementia (1999)Websitesleepdiplomat.com

Matthew Walker (scientist)

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Matthew Walker

Born Matthew Paul Walker
1972 or 1973 (49-50 years)
Liverpool, England
Alma mater
University of Nottingham (BSc)
University of Newcastle (PhD)
Known for Why We Sleep
Scientific career
Fields sleep
Institutions Harvard University
University of California, Berkeley
Thesis A psychophysiological investigation into fluctuating levels of consciousness in neurodegenerative dementia (1999)
Website Slaapdiplomat.com
Matthew Paul Walker is a British author, scientist and professor of neuroscience and psychology at the University of California, Berkeley.[1] He is a public intellectual who focuses on the topic of sleep.

As an academic, Walker has focused on the impact of sleep on human health. He has contributed to many scientific studies.

Walker became a public intellectual after publishing Why We Sleep, his first popular science work, in 2017. It became an international bestseller.

Early life and education
Walker was born in Liverpool, England, and grew up in that city and Chester. Walker graduated from the University of Nottingham in 1996 with a degree in neuroscience. He obtained a Ph.D. in neurophysiology from the University of Newcastle in 1999, where his research was funded by the Medical Research Council (MRC) Neurochemical Pathology Unit.

Career and research
Walker has worked in the United States for most of his career.

Harvard University
In June 2004, Walker became an assistant professor of psychiatry at Harvard Medical School. In an experiment he conducted in October 2002, he trained people to type a complex series of keys on a computer keyboard as quickly as possible. One group started in the morning and the other in the evening, with a time interval of 12 hours for each group respectively. He and his colleagues found that those who were first tested in the evening and retested after getting a good night's sleep significantly improved their performance without losing accuracy compared to their counterparts.

University of California, Berkeley
Since then, Walker left Harvard in July 2007 and taught as a professor of neuroscience and psychology at the University of California, Berkeley. Walker is the founder and director of the Center for Human Sleep Science, located in the Department of Psychology at UC Berkeley, in collaboration with the Helen Wills Neuroscience Institute and the Henry H. Wheeler Jr. Brain Imaging Center. The organization uses brain imaging methods (MRI, PET scanning), high-density sleep electroencephalography recordings, genomics, proteomics, autonomic physiology, brain stimulation and cognitive testing to investigate the role of sleep in human health and disease. It examines Alzheimer's disease, Parkinson's disease, cancer, depression, anxiety, insomnia, cardiovascular disease, drug abuse, obesity and diabetes.

Verily / Google
In 2018, Walker worked with research scientists from Project Baseline to develop a sleep diary. Project Baseline is led by Verily (a life sciences research organization of Alphabet Inc.). As of July 2020, Walker states on his website that he is "currently [...] a sleep scientist at Google [helping] with the scientific research of sleep in health and disease."

Why we sleep
Main article: Why we sleep
Walker's first book, Why We Sleep: Unlocking the Power of Sleep and Dreams, was published in October 2017. He spent four years writing the book, which claims that sleep deprivation is linked to numerous fatal diseases, including dementia. The book became a No. 1 Sunday Times Bestseller in the UK, and a New York Times Bestseller in the US . It has also been published in Spanish (¿Por qué dormimos?), by Paidós; and in traditional Mandarin Chinese Commonwealth Publishing Group.

Why We Sleep was criticized by Alexey Guzey, an independent researcher with a background in economics, in an essay entitled "Matthew Walker's 'Why We Sleep' is riddled with scientific and factual errors".

Guzey, along with Andrew Gelman, a statistician at Columbia University, accused Walker of falsifying data in an article published in Chance. Guzey and Gelman argued that "it is unethical to reproduce a graph and remove the one bar in the original graph d

l sleep loss epidemic".[6] The WHO denied his claim, and Walker subsequently conceded that his assertion had been "misremembered", and was actually attributable to a claim from the Centers for Disease Control and Prevention in 2014.[25]

Walker failed to disclose that numerous meta-analyses involving over 4 million adults found the lowest mortality was associated with seven hours of sleep, and that the increased risk of death associated with sleeping more than seven hours was significantly greater than the risk of sleeping less than seven hours as defined by a J-shaped curve. Psychologist Stuart J. Ritchie criticised Walker's approach in his book. "Walker could have written a far more cautious book that limited itself to just what the data shows, but perhaps such a book wouldn't have sold so many copies or been hailed as an intervention that 'should change science and medicine'".[26]

Walker responded to criticisms of the book in an online blog post.[27]

Greg Potter of the University of Leeds argued in defence of Walker, commenting on its positive impact: "I do think there are various inaccuracies in it, and I think Guzey points those out effectively. ... I think that the reality is that a lot of people who have read the book will have done things to attend to their sleep hygiene and made some changes in their lifestyles which now support their ability to get better sleep. My guess is the book has probably had a net positive impact."[28]

Media
Walker has a short-form podcast, The Matt Walker Podcast, focusing on sleep, the brain, and the body. The seven to thirteen minute podcasts have been running since July 2021.[29] Janan Ganesh, writing in the Financial Times, described Walker as, "the world's most famous expert on [sleep]".[3]

Article retraction
An article written by Walker published in Neuron in August 2019 was retracted in July 2020, at the request of the author, after it was found to have considerable overlap with an article of his previously published in The Lancet.[30]

Sleep is your superpower
In 2019, Walker gave a 19-minute TED talk entitled "Sleep is your superpower".[31] It received more than one million views in the first 72 hours.[32] selected by TED curator, Chris Anderson as one of his top talks of 2019 and to date has been seen more than 19[33] million times. Markus Loecher, Professor for Mathematics and Statistics at Berlin School of Economics and Law criticised its claims and the veracity of its facts.[34]

Elena Yerevan Lives in Yerevan September 6, 2023 01:05 AM Sent by you My drawing is my little gift for Elena, the musician I admire very much!