Sleep & Energy

The adenosine receptor mechanism, the half-life math, and the protocols that make caffeine work for you

The first-line treatment for chronic insomnia — its components, mechanisms, and honest limits

Light, meal timing, evening dimming, and chronotype — graded honestly

The four energy dimensions, the stress-recovery oscillation, and why managing capacity beats managing hours

Using the first light of day to anchor your biology

Mednick’s nap wheel, stage-matched napping, and the science of targeted mid-day sleep

Prophylactic sleep extension, debt repayment, and the honest limits of sleep banking

Roenneberg’s social jetlag, sleep debt repayment, and clock realignment — graded honestly

The habits with real evidence behind them — and where the limits are

Why you feel sleepy, what caffeine actually does, and how to work with your adenosine system

Spielman’s protocol — why limiting time in bed is the fastest fix for chronic insomnia

Rebuilding the bed–sleep association — the most supported behavioral sleep technique

The adenosine mechanism, timing tactics, and honest limits

Core temperature, peripheral vasodilation, the warm-bath paradox, and what actually controls your sleep window

Evening light and screens — what holds up and what is oversold

Physical, emotional, mental, and spiritual energy — spending and renewing each

Duration, timing, the nappuccino, and the science of avoiding sleep inertia

Energy over time, the four dimensions, and the rhythm of work and recovery

Borbély’s sleep regulatory model — and how to work with it rather than against it

The arousal-reduction mechanisms behind effective pre-sleep routines — and what actually moves the needle

The two-process model, REM/NREM, and protecting sleep — with honest caveats

Guided deep rest for recovery — with an honest read on thin evidence