Locus Coeruleus

Sleep & Circadian Optimization June 22, 2026

Waking at 3am is the cortisol-melatonin crossover firing early: HPA hyperactivation drives a pre-dawn cortisol spike that fragments REM sleep.

Read article : Why Do I Wake Up at 3am? | Dr. Sydney Ceruto — MindLAB

Brain Health & Optimization June 22, 2026

Glymphatic clearance runs on norepinephrine oscillations during NREM sleep, pumping CSF through perivascular channels to flush metabolic waste.

Read article : Glymphatic System and Sleep | Dr. Sydney Ceruto — MindLAB

Relationship Intelligence June 22, 2026

Can't sleep after a breakup? Your HPA axis flipped the cortisol rhythm and your locus coeruleus runs nocturnal threat-scanning at...

Read article : Can’t Sleep After Breakup | Dr. Sydney Ceruto — MindLAB