The Science of Recharge
System Status
We spend 33% of our lives asleep, yet most of us are chronically tired. Why?
It's a war between two forces.
Your Circadian Rhythm. It wants you awake when the sun is up and asleep when it's dark. It relies entirely on LIGHT signals entering your eyes.
Adenosine builds up in your brain every minute you are awake. It's like a "Sleep Hunger."
Caffeine doesn't remove Adenosine; it just blocks the receptor. When the caffeine wears off, all that built-up sleepiness hits you at once (The Afternoon Crash).
The 10-3-2-1-0 Method for perfect rest.
Light is a drug. Dosage matters.
View sunlight outdoors within 30-60 mins of waking. This sets your neural timer for sleep 16 hours later.
Artificial light after sunset suppresses Melatonin.
Your eyes are 1000x more sensitive to light at night than during the day. Even a small LED standby light can disrupt sleep architecture.
To sleep, you must cool down.
Your core body temperature needs to drop by ~1°C to initiate sleep. If it's too hot, your brain stays alert.
Taking a hot shower/bath before bed actually cools you down. Blood rushes to skin surface, releasing core heat.
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