Why does it sometimes take an hour for me to feel fully awake even after a good night’s sleep?
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Brain fog/grogginess can have lots of factors and scientists don’t know the EXACT cause but they have some theories.
– Reduced blood flow to the brain after waking up.
-An increase in delta brain waves (which are linked to deep sleep)
-Slower brain reactivation when you wake up.
-Deficiencies in certain neurotransmitters that are responsible for the feeling of alertness/wakefulness
-Increased levels of other neurotransmitters that cause sleepiness
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