Scientific Facts of Sleep Deprivation: What it does to your Mood

I like to facts. You like facts. Here are some FACTS, as in, scientifically proven evidence, around sleep deprivation. The studies below class sleep deprivation as anything below 7 hours. SEVEN. 

Note - If you would like me to share the scientific studies with you, please email me. I'll happily show you - it proves the research is based upon humans who are extremely similar to you - working too much, sleeping not enough and evidently, suffering immensely.

-       After one-night sleep deprivation, individuals subjected to sleep deprivation reported a 35.5% decrease in energy, happiness, alertness and sociability (7)

-       37% more cortisol in the blood after ONE night of partial sleep deprivation (2) -  heightened cortisol predicts acute illness and chronic conditions such as depression, anxiety, cardiovascular disease and cancer

-       45% more cortisol in the blood after ONE night of total sleep deprivation (2) - heightened cortisol predicts acute illness and chronic conditions such as depression, anxiety, cardiovascular disease and cancer

-       Serotonin receptors are desensitized, which causes a lack of positive emotions and feelings of being ‘flat’. Dysfunction of this system is evident after 8 days of sleep restriction (4 hours). Recovery was only granted after 7 days’ normal sleep. Dysfunction of this system is seen in the pathology of depression and similar mood disorders (10)

-       Those with an insomnia diagnosis are 9.82 times more likely to have depression, and 17.35 times more likely to have clinically significant anxiety, compared to those without (12)

-       Chronic sleep deprivation causes the HPA axis to malfunction, which is responsible for the sequence of events within your fight or flight (stress) response. Because of this, you are more likely to react stronger to stressful experiences and perceive neutral stimuli as stressful. (11)

Need help sleeping? Sign up for my FREE 21 Days of Sleep Tips Series, highlighting a sample of the physiological, psychological and environmental changes you can make tonight to improve your energy levels, mood and concentration tomorrow. Or, email me at enquiries@oliviaarezzolo.com.au to find out more about my bespoke online program, The Sleep Solution, and how it can transform your sleep, and restore you to your best self - inside and out.

Scientific Facts of Sleep Deprivation: What it does to your Body

I like to facts. You like facts. Here are some FACTS, as in, scientifically proven evidence, around sleep deprivation. The studies below class sleep deprivation as anything below 7 hours. SEVEN. 

Note - If you would like me to share the scientific studies with you, please email me. I'll happily show you - it proves the research is based upon humans who are extremely similar to you - working too much, sleeping not enough and evidently, suffering immensely.

-       Weight gain: those sleeping 5.5 hours instead of 8.5 hours had a 15.5 decreased level of Leptin, the hormone which makes us feel satisfied; and a 14.9 increase in ghrelin, the hormone which promotes hunger (4)

-       Poor sleep contributes to an inability to lose fat: subjects experienced 55% greater fat loss when they slept 8.5 hours compared to when they slept 5.5 hours; over the course of 2 weeks. These were the same individuals simply tested twice, and all diet and lifestyle factors were clinically controlled. This study was published in the Annals of Internal Medicine (21)

-       A meta-analysis of 496 of healthy adults showed that those sleep deprivation increased calorie intake by 385 calories, particularly calories from fat, vs non sleep deprived (20)

-       After 2 days of sleep deprivation there is an increase in appetite by 33-45% for high caloric carbohydrates (16)

-       Only after 1 week of sleep deprivation to 5 hours, as reported by a study published in peer reviewed medical journal JAMA, there is a 10-15% depression of testosterone levels, reducing libido, fertility and muscle development (22)

-       Inadequate sleep causes the lowered production of growth hormone (GH), inhibiting muscle development, including muscle repair following exercise. 70% of GH is produced during the first half of the sleep period, so missing quality rest during this time significantly impacts the capacity of this hormone to be produced (17)

-       After only 6 days of partial sleep deprivation, there is Impairments in glucose metabolism, contributing to unstable blood sugar levels, weight gain and diabetes (15)

-       A study of 225 adults found that those who were subjected to sleeping 4 hours per night vs normal sleep ate an additional 265 calories between 10pm and their bedtime of 4am (19)

Need help sleeping? Sign up for my FREE 21 Days of Sleep Tips Series, highlighting a sample of the physiological, psychological and environmental changes you can make tonight to improve your energy levels, mood and concentration tomorrow. Or, email me at enquiries@oliviaarezzolo.com.au to find out more about my bespoke online program, The Sleep Solution, and how it can transform your sleep, and restore you to your best self - inside and out.