Hub IV · The Quiet Cabinet

Plants and minerals, in the dose the body asked for.

None of these will replace sleep or sunlight. All of them, used patiently, give the cognition a wider runway. No affiliate links — just the molecule and the literature.

Magnesium Threonate

Mg-L-threonate

The form that crosses the blood–brain barrier. Sleep depth, working memory, cognitive calm.

Dose · 1.5–2 g, ninety minutes before sleep.

Pair with glycine for deeper effect.

Cordyceps

Cordyceps militaris

Mitochondrial efficiency, oxygen utilisation. Endurance without stimulation.

Dose · 1–3 g extract, mornings, on an empty stomach.

A clean energy. No crash, no jitter.

Methylcobalamin (B12)

Methyl-B12

The active form of B12. Mitochondrial fuel, myelin maintenance, daytime alertness without stimulant load.

Dose · 1000 mcg sublingual, taken in the morning.

Especially relevant for plant-based diets and adults over 40.

Ashwagandha

Withania somnifera

Adaptation under chronic load. Lowers evening cortisol; improves sleep architecture.

Dose · 300–600 mg KSM-66, with dinner, eight weeks on / two weeks off.

Avoid if hyperthyroid or pregnant.

Lion's Mane

Hericium erinaceus

Nerve growth factor expression. A slow, accumulating clarity.

Dose · 500–1000 mg dual-extract, daily.

Effects are felt at week three, not day three.

Rhodiola Rosea

Rhodiola rosea

Acute stress buffering. Mental stamina under deadline.

Dose · 200–400 mg of 3% rosavins, in the morning.

Stimulating — keep before noon.

L-Theanine

γ-glutamylethylamide

Smooths caffeine. Raises alpha-wave activity. Calm alert.

Dose · 200 mg with morning coffee.

The simplest upgrade in the cabinet.

This is reference, not prescription. Speak with a clinician familiar with botanicals before adding compounds to medication regimens.