Taking longer to enter the dream phase can disrupt the ability to consolidate memories and interfere with emotion regulation.

Delays in dreaming might be an early warning sign of Alzheimer's disease. People who take significantly longer to enter the rapid eye movement phase of sleep could be experiencing an early symptom of Alzheimer's, researchers reported Monday in the journal Alzheimer's & Dementia .

A study by a team of researchers in Beijing, China, has claimed that a certain dreaming pattern could be a sign of Alzheimer's

In a nutshell Taking longer than 193 minutes to enter REM sleep may indicate elevated levels of proteins associated with Alzheimer’s disease, potentially serving as an early warning sign of brain changes.