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“Adrenal fatigue” is not a recognized medical diagnosis. No major endocrine society accepts it, and a comprehensive 2016 systematic review of 58 studies found no scientific basis linking cortisol levels to fatigue severity, or any evidence that the adrenal glands themselves malfunction from chronic stress in otherwise healthy people. That doesn’t mean the exhaustion, the
Adrenal Fatigue and Sleep: What’s Actually Real Read More »
Adults with anemia had 32% higher adjusted odds of insomnia, and the pooled estimate across 22,134 participants was 39% higher odds. That matters for executives because the problem often shows up after the routine is already optimized, the mattress is good, the room is dark, and sleep hygiene is “done” but the body still wakes
Can Anemia Cause Insomnia? a Practical Guide Read More »
NSDR, or Non-Sleep Deep Rest, is a term coined by Stanford neuroscientist Andrew Huberman for a category of practices, most directly based on yoga nidra, a guided relaxation practice from yoga, that bring the body into deep rest while staying conscious. Research shows genuine, if often modest, benefits: yoga nidra practices are linked to reduced
NSDR for Sleep: What the Research Actually Supports Read More »
64% of elite athletes and 65% of sub-elite athletes reported poor sleep in a large 2021 survey, which is why athletic recovery is usually won or lost on sleep quality, nutrition timing, and load management, not on gadgets. If the night is bad, the cold plunge, massage gun, or supplement stack rarely rescues the next
Athletic Recovery: The Protocol High Performers Actually Use Read More »
You’re in the middle of the afternoon, your inbox is still moving, and your brain has checked out. The desk lamp feels too bright, the third tab on your screen is starting to blur, and that familiar question lands again, why do I get sleepy in the afternoon even when the night before didn’t feel
Why Do I Get Sleepy in the Afternoon? a Practical Guide Read More »
4-7-8 breathing is a simple technique, inhale for 4 seconds, hold for 7, exhale for 8, developed by Dr. Andrew Weil as an adaptation of pranayama, the yogic practice of controlled breathing. The extended exhale is designed to activate your vagus nerve and shift your body toward a calmer, parasympathetic state. The honest picture on
4-7-8 Breathing for Sleep: Steps and What Research Shows Read More »
Serotonin and sleep are connected, but not in the simple “more serotonin equals more sleepy” way that most wellness content suggests. Well-established neuroscience shows serotonin’s primary, direct role in the classic sleep-wake system is to promote wakefulness and actively inhibit REM sleep, the opposite of a sedative. What’s true is that serotonin is the essential
Serotonin and Sleep: The Myth vs. the Actual Science Read More »
Most advice about blue light exposure gets the problem backwards. The useful question isn’t whether blue light exists, it’s when you take it in, how much you get, and what wavelength dominates the source. That distinction matters for executives and founders who need sharp mornings and protected nights. Daytime blue light can support alertness and
Blue Light Exposure: A Guide to Better Sleep & Performance Read More »
Bloating and sleep are connected largely because your gut has its own internal clock, and digestion naturally slows down at night as part of a normal circadian rhythm, not a malfunction. On top of that expected slowdown, poor sleep itself can independently impair gut motility and increase sensitivity to digestive discomfort, meaning a bad night’s
Bloating and Sleep: Why Your Stomach Feels Worse at Night Read More »
Most advice on racing thoughts at night starts in the wrong place. It treats the problem like a vague anxiety issue, then hands you breathing exercises and hope. For a high performer, that misses the underlying mechanism, cognitive hyperarousal, a state where the brain stays in problem-solving mode even when the body is ready for
Racing Thoughts at Night: A High-Performer’s Protocol Read More »
