How Much Coffee Drink Every Day Healthy
February 17, 2012 by staff
How Much Coffee Drink Every Day Healthy, A new software app can tell when a cup of coffee will give you a mental boost and when it will keep you awake.
Caffeine Zone software takes information on caffeine use and integrates it with information on the effects of caffeine to produce a graph of how it will affect users over time.
“Many people don’t understand how caffeine levels in their bloodstream go up and how they go down,” says Frank Ritter, professor of information sciences and technology, psychology, and computer science and engineering at Penn State. “It’s important to understand the effect that caffeine can have at these various levels.”
Ritter, who worked with Kuo-Chuan (Martin) Yeh, assistant professor of computer science and engineering, says if a person drinks a cup of coffee rapidly, they will experience a spike in mental alertness, but enough of the drug can linger in the bloodstream to cause sleep problems hours later.
The researchers used peer-reviewed studies as input data to determine that caffeine drinkers with between 200 and 400 milligrams of caffeine in their blood stream are in an optimal mental alertness zone. For sleep, the researchers set a lower threshold of 100 milligrams. Higher levels could cause sleep problems, they say.
The study, reported at the 2011 Augmented Cognition International Conference, also found that people who drink too much caffeine, too quickly, may face other problems, including nausea and nervousness.
Maintaining proper caffeine balance is important for many workers. For example, sailors on submarines must carefully watch their sleep patterns because their sleeping and waking patterns vary each day, Ritter says.
“If they, and others who drink coffee to stay awake, drink too much coffee on one shift, they may have trouble sleeping. So, the next day, they’ll drink even more coffee and have even more trouble sleeping.”
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