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For more than two years I have been sleeping irregularity. Sometimes I go to the bed at 10am, some days it may 10pm.There no regularity to when I sleep.

Also, sleep time may differ. Sometimes I sleep 12-14 hours long and sometimes I am awake for 24 hours. Can this behavior affect my brain or health in the long term?

  • Could you please clarify whether you are asking about irregular sleep without or with sleep deprivation? – YviDe Jan 13 '16 at 19:34
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Sleep irregularity

  1. In children, values for lower sleep duration were found to be strongly associated with increased metabolic risk.

Although obese children did not display radically different total weekly sleep durations, compared with their normal-weight counterparts, analyses of SV throughout the week revealed that obese children were less likely to experience “catch-up” sleep on weekends and the combination of shorter sleep duration and more-variable sleep patterns was associated with adverse metabolic outcomes. Source: Sleep Duration, Sleep Regularity, Body Weight, and Metabolic Homeostasis in School-aged Children

  1. Adequate sleep each day is noted to be very important for learning and memory.

In the view of many researchers, evidence suggests that various sleep stages are involved in the consolidation of different types of memories and that being sleep deprived reduces one’s ability to learn. Although open questions (and debate) remain, the overall evidence suggests that adequate sleep each day is very important for learning and memory. Source: Sleep, Learning, and Memory

  1. Several sleep hygiene practices are recommended here to regulate one's sleep.

TL;DR: Adults are recommended to sleep at least for seven hours per night on a regular basis.

Sleeping less than 7 hours per night on a regular basis is associated with adverse health outcomes, including weight gain and obesity, diabetes, hypertension, heart disease and stroke, depression, and increased risk of death. Sleeping less than 7 hours per night is also associated with impaired immune function, increased pain, impaired performance, increased errors, and greater risk of accidents. Source: Recommended Amount of Sleep for a Healthy Adult

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As a Dr I can tell you that this has been accepted by scientific community, so it will affect on your brain, body physiology, metabolisms,behavior and even your gene expression. Clearly, sleep is not only for the brain but also for the rest of the body.

and there is tons of articles in this field just search in PubMed.

For example read these may help you:

If you want to read just one article as your answer i recommend to read this one Metabolic Consequences in Humans of Prolonged Sleep Restriction Combined with Circadian Disruption examined healthy volunteers over a 29-day period. They were made to sleep less and at varying bedtimes; sleeping patterns similar to those experienced by shift-workers.

They found that the shift-like sleep patterns led to poorer glucose regulation and metabolism. The authors explained that eventually, over time, the raised risk of obesity and diabetes became apparent.

Review:The Impact of Sleep Deprivation on Hormones and Metabolism

Behavioral and psychophysiological correlates of irregularity in chronic sleep routine

(sleep irregularity effect on physiological arousal indexes, psychomotor performance and subjective mood )

Sleep disorders as core symptoms of depression

Effect of sleep deprivation on healing process

a review on cortisol level and sleep relation

review on sleep disturbance and suicide risk

Sleep deprivation Impact on cognitive performance

Effects of sleep deprivation on neural functioning: an integrative review

How sleep deprivation affects gene expression in the brain: a review of recent findings.

WebMD( interesting facts to read)

They are all valid scientific publication with standard experiments and a lot more articles that proves effect of sleep on behavior and health mental and physical.

  • 2
    That's all about sleep deprivation, though. I think the OP isn't sleep deprived, they just sleep irregularly. – YviDe Jan 13 '16 at 19:34
  • Could you please clean up and summarize your sources more? – Dave Liu Feb 7 '16 at 8:23

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