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The popular advice is simple: have a nightcap, fall asleep faster, and wake refreshed. The first part can be true. The conclusion usually isn’t. Alcohol and insomnia are linked by a deceptive trade-off, because alcohol may make sleep onset feel easier while weakening the second half of the night, when stable, restorative sleep matters for
Alcohol and Insomnia: How Drinking Disrupts Sleep and What Read More »
Healthy adults typically spend about 10% to 20% of total sleep time in deep sleep, or roughly 40 to 110 minutes during a seven- to nine-hour night. That range shifts significantly with age, and chasing a fixed number can be counterproductive. The popular advice usually sounds more precise than the evidence allows. A wearable reports
Deep Sleep How Much Is Needed for Peak Performance Read More »
You’re in a hotel room after a red-eye, staring at the clock and calculating whether three fractured hours of sleep will be enough for a morning presentation. Melatonin is beside the coffee machine. Valerian is in your travel kit. The temptation is obvious: take both, force sleep, and deal with the consequences later. That reflex
Melatonin and Valerian Root: A Practical Sleep Guide Read More »
You open your lab portal between meetings and find a report packed with arrows, abbreviations, and highlighted results. Your sleep has been poor, your afternoon energy has collapsed, and your wearable is showing lower recovery, but the report offers no obvious explanation. One value is marked high, another low, and several sit close to the
How to Interpret Lab Results for Sleep and Performance Read More »
Your ability to focus tomorrow may be determined before you open your laptop. In a large 2023 review, a study of around 480,000 adults aged 38 to 73 found that sleeping 7 hours per day was associated with the strongest executive-function performance on computer-based attention and working-memory tests. The same review reported that 11.8% of
10 Executive Functioning Tips for Better Performance Read More »
If you spend 8 hours in bed but sleep only 6.4 of them, your sleep efficiency is 80%, not 8 hours of recovery. That distinction changes how I read an executive sleep profile. The problem may not be a lack of sleep opportunity. It may be the time spent awake, alert, worrying, checking the clock,
Sleep Efficiency: The Executive Guide to Better Recovery Read More »
Most advice on how to improve HRV score starts with sleep, meditation, and cold showers. That advice isn’t wrong, but it’s incomplete. Before changing your bedtime or adding another recovery gadget, verify that the number you’re trying to improve is being measured consistently and that your training load isn’t working against you. For high-performers, HRV
How to Improve HRV Score: A High-Performer’s Protocol 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 »
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 »
