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Caffeine Zone 2 Tracks Your Caffeine Usage

iOS: If you spend the bulk of your day downing cup after cup of coffee, you likely know the feeling of taking it one cup too far. You might be nervous or have trouble sleeping later on. Caffeine Zone 2 is an app that allows you to track your caffeine usage so you’ll know if that late afternoon cup is doing you more harm than good.

Caffeine Zone 2 was developed by the ACS Lab at Penn State University and uses data collected from a number of studies to help track how long caffeine stays in your bloodstream. All you have to do is let the app know when and how much caffeine you drink each time you grab a new cup and Caffeine Zone maps out the data for you. It then shows a graph of how caffeine affects your alertness level, sleep, and cognitive active zone.

If you try and drink another cup while you’re still at your optimal level of awareness, Caffeine Zone 2 gives you a warning that the drink won’t do you any good. The data it collects ends up looking like a fitness tracking app, but it’s handy to see if that extra cup in the afternoon is having an effect on your sleep habit. It’s a free download in the iTunes App Store.

Caffeine Zone 2 [iTunes App Store via Medical Xpress]