> "Half-life" by biological elimination is not precisely exponential as with radioactive decay, and may trend closer to a linear process -- as in, your liver ca

> "Half-life" by biological elimination is not precisely exponential as with radioactive decay, and may trend closer to a linear process -- as in, your liver can eliminate X units per hour, not X% of however much you've had. Damn. I was hoping to calculate the optimal hour for a caffeine "booster" after the initial morning fix.