Sleep & 3AM Wakeups

Chronic psychological stress can make immune cells less responsive to cortisol’s anti-inflammatory action – a phenomenon called glucocorticoid receptor resistance. This can allow NF-kappaB-driven inflammatory cytokines (including IL-6 and TNF-alpha) to escape normal suppression and contribute to inflammatory and neuroendocrine timing changes associated with chronic insomnia. The resulting poor sleep is associated with activation of

Inflammatory processes can increase prostaglandins made from the same arachidonic acid pathway, including PGD2 and PGE2. PGD2 (prostaglandin D2) drives sleep pressure through adenosine activity in the basal forebrain. In rat experiments, PGE2 (prostaglandin E2) activates histamine-releasing wake neurons in the tuberomammillary nucleus via EP4 receptors. The result: the body registers exhaustion while the brain

Yes — inflammation can be one contributor that is easier to overlook. The immune apparatus follows a circadian rhythm and interacts with the overnight low point in glucocorticoid signaling, when inflammatory signaling may be less restrained. At least four inflammatory pathways — histamine, gut endotoxins, neuroinflammation, and pro-inflammatory cytokines — can affect sleep maintenance during

Autoimmune insomnia can be sleep disruption shaped by immune activity itself. Pro-inflammatory cytokines (TNF-alpha, IL-6, IL-1beta) elevated in conditions like rheumatoid arthritis, lupus, and multiple sclerosis are linked with altered sleep regulation and fragmented sleep in several inflammatory and autoimmune conditions. CBT-I, melatonin, and sleep hygiene can help parts of the sleep problem, but they

After 50, men can experience rising baseline inflammation as senescent cells and other age-related immune changes release inflammatory mediators such as interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-alpha), while blood markers such as C-reactive protein (CRP) can rise downstream. This age-related inflammatory load is associated with fragmented sleep architecture by reducing slow-wave sleep, increasing