Sleep

Why sleep is the first thing I fix

Before any lab panel or protocol, I look at sleep. It is the highest-leverage change most patients can make.

By Dr. Elizabeth Isalguez, MD
· 1 min read
Early morning light falling across white linen bedding in a quiet, dim bedroom

New patients usually arrive asking about energy. Nine times out of ten, we start somewhere less glamorous: how they sleep. Sleep is where the body repairs, consolidates and resets — and it is the highest-leverage change most of my patients can make.

What poor sleep actually costs

Short sleep shows up in the numbers I track every day: glucose control, recovery scores, afternoon energy, even how well a training block lands. Patients often blame willpower for what is really a sleep debt compounding quietly in the background.

Where I start

Consistent timing, a dark cool room, and an honest look at evening light and caffeine. Then, where appropriate, magnesium glycinate in the evening — the form I prefer because it is well absorbed and gentle on digestion. Small inputs, repeated nightly, compound.*

Consistency beats intensity. A boring evening routine outperforms a heroic morning one.

Common questions

Short answers to what patients ask most often.

Why start with sleep instead of an energy supplement?
Sleep is where the body repairs, consolidates and resets. Short sleep shows up in glucose control, recovery and afternoon energy, so correcting it usually improves everything downstream before a single capsule is added.
What are the first sleep changes to make?
Consistent sleep and wake timing, a dark cool room, and an honest look at evening light and caffeine. These cost nothing and outperform most supplements.
Which form of magnesium is preferred for evening use?
Magnesium glycinate, because it is well absorbed and gentle on digestion. These statements have not been evaluated by the Food and Drug Administration.

What I reach for on sleep

Physician-selected, GMP-made in the USA, clinically meaningful doses.

Magnesium Glycinate
Magnesium Glycinate
Magnesium Glycinate delivers 275 mg of elemental magnesium per serving, from 2,500...
$42.50

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How I read a supplement label
Immunity
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This article is educational and is not medical advice. *These statements have not been evaluated by the Food and Drug Administration. Consult your physician before starting any supplement.
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