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Health Forum

Consciousness problem

Answered by: Dr Nur Syuhada binti Zulkifli

Last Updated: February 14, 2020 3:40 AM
tannguyen.cse19 47 days

I have 8 hours straight sleep from 10PM to 6AM. Then breakfast and feel totally ready to jump to work at around 7AM. But when I start reading book (I am reading “Thinking Fast and Slow” now), I completely feel sleepy, just like the feeling when I go to school at 7AM. I don’t understand why? I have been that for 3 days.

Dr Nur Syuhada binti Zulkifli 47 days
General Practitioner

Thank you for your question. Regarding the description of your condition, the symptoms and signs that you stated are too vague. There are several questions that we need to enquire from you to explore different possibilities and making conclusions regarding your complaints.

However, these are the possible causes of waking up tired after a sleep. Generally. it is associated about the quality of sleep you get that night might not be good enough. It could be due to:

  • Blue light exposure from energy-efficient lighting and electronic screens suppresses the secretion of melatonin. It is a hormone that helps regulate your body’s sleep-wake cycle.
  • Poor sleep hygiene such as mattress problem, uncomfortable room temperature (too cold or too hot), loud noises
  • Too much caffeine* before sleep
  • Alcohol consumption would give sedatives effect but not a good sleep
  • Sleep problem such as sleep movement disorder, sleep apnea, insomnia, frequent awakening
  • Sleep inertia which is normal. It occur when the brain doesn’t instantly wake up after sleep

The following answers regarding your current queries are just general descriptions due to the limited information provided by you. Click on this link (DoctorOnCall) for a private consultation with our doctors.Therefore, please click on this link (DoctorOnCall) to speak with our doctors online. We assure you that our conversations are kept in confidentiality unless additional consultation needed with other medical parties. Thank you.


Last Updated: Fri Feb 14 2020 03:40:29 GMT+0000 (Coordinated Universal Time)
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