The sleep cycle has three NREM stages and one REM stage. Deep sleep occurs in stage 3 and is crucial for feeling refreshed. REM sleep helps in processing and storing memories. As we sleep, our brain ...

The locus coeruleus is a region of the brain that is instrumental in coordinating our mental processing and is the primary source of noradrenaline in the brain, which acts to regulate arousal states ...

Ever noticed how your grandparents or elderly neighbours are up and about before the sun rises? While it might seem like a quirky habit, waking up early is actually a common and natural part of ageing ...