Health

Buspirone vs benzodiazepines: serotonin partial agonism vs GABA modulation, which drug fits which patient, and the dependence math that matters.

Trazodone became the default off-label sleep drug. Here is the receptor mechanism, dose paradox, and how it compares to benzodiazepines for sleep.

Hypnagogic hallucinations affect 30-40% of people at sleep onset. Learn what drives them neurologically and when they signal narcolepsy.

SIBO drives anxiety and depression through three biological pathways. Learn the mechanisms, who should test, and what treatment looks like.

Sleep debt accumulates like a balance your brain cannot ignore. Here is what chronic deprivation does to cognition, mood, and lifespan.

Phosphatidylserine has human RCT data on cortisol suppression. Learn the Monteleone and Hellhammer evidence and the dose that actually works.

MCAS causes flushing, palpitations, and brain fog that look exactly like anxiety. Learn the diagnostic criteria and the treatment ladder that works.

Semaglutide targets the hypothalamus, arcuate nucleus, and mesolimbic dopamine system to kill hunger at the source. How it works in the brain.

Caffeine tolerance builds within 7-12 days as your brain upregulates adenosine receptors. Learn the science and how to reset it effectively.

POTS syndrome symptoms explained: why standing triggers a 30+ bpm heart rate surge, how baroreceptor failure drives it, and what treatment works.

FND produces real tremor, weakness, and seizures with no structural brain damage. The Hoover sign, predictive processing model, and what works.

Fermented foods triggering anxiety? Histamine intolerance and low DAO enzyme activity may be the cause. Symptoms, foods, and what to do next.

Locus coeruleus norepinephrine anxiety explained: how this tiny brainstem nucleus controls your alarm system, why it misfires in PTSD, and what actually modulates it. (161 chars)

Anxious people have higher body signal sensibility but lower accuracy. Learn the Garfinkel framework and how to retrain interoception correctly.

Magnesium glycinate vs citrate for anxiety: which form crosses the BBB, the bioavailability data, and the dose that actually works for sleep.

Sertraline emotional blunting affects 40-60% of long-term SSRI users. The 2023 Cambridge study shows why: impaired reinforcement learning, not sedation.

The Vyvanse crash is a dopamine rebound, not a side effect. Learn the pharmacokinetic reason it hits 8-12 hours post-dose and the timing fix that prevents it.

Is adrenal fatigue real? The Endocrine Society says no. Here is what the evidence actually shows and what tests to ask for instead.

Metabolic adaptation makes weight loss stall even when you diet correctly. Learn what drives it, how long it lasts, and what actually works against it.