Navigation Links
Best time for a coffee break? There's an app for that
Date:2/14/2012

Caffeinated drinks such as coffee and soda are the pick-me-ups of choice for many people, but too much caffeine can cause nervousness and sleep problems.

Caffeine Zone software app developed by Penn State researchers, can help people determine when caffeine may give them a mental boost and when it could hurt their sleep patterns. The software takes information on caffeine use and integrates it with information on the effects of caffeine to produce a graph of how the caffeine will affect the users over time.

"Many people don't understand how caffeine levels in their bloodstream go up and how they go down," said Frank Ritter, professor of information sciences and technology, psychology, and computer science and engineering. "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, said that 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. Drinkers may have sleep problems if they remain above this.

The researchers, who reported their findings at the 2011 Augmented Cognition International Conference, said people who drink too much caffeine, too quickly, may face other problems. A spike of caffeine above the optimal level can cause 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 said.

"If they, and others who drink coffee to stay awake, drink too much coffee on one shift, they may have trouble sleeping," said Ritter. "So, the next day, they'll drink even more coffee and have even more trouble sleeping."

To plot caffeine's effect with the app, drinkers type in information about how much caffeine they drank, or plan to drink, and when they plan to have a caffeinated beverage. They also can add how fast they drink the beverage.

The app can also help people determine when to modify their caffeine habits, so that they might choose to drink a decaffeinated beverage, or mix a blend of caffeinated and decaffeinated coffees.

The app is available on iTunes for free with advertisements and for purchase without ads. It only works on Apple devices -- the iPhone, iPod Touch and iPad.


'/>"/>
Contact: Matt Swayne
mls29@psu.edu
814-865-9481
Penn State
Source:Eurekalert

Related biology news :

1. Carbonized coffee grounds remove foul smells
2. UC Riverside bug expert visits Rwanda to solve mystery surrounding specialty coffee sector
3. It all depends on the coffee
4. Got a craving for fast food? Skip the coffee, study says
5. Coffee berry borer in Hawaii and prospects for control
6. Coffee, energy drinkers beware: Many mega-sized drinks loaded with sugar, MU nutrition expert says
7. Roasting coffee beans a dark brown produces valued antioxidants: UBC food scientists
8. On organic coffee farm, complex interactions keep pests under control
9. Shade-coffee farms support native bees that maintain genetic diversity in tropical forests
10. New global coffee research initiative announced
11. UCLA researchers show how worlds smallest coffee ring may help biosensors detect disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/12/2016)... 2016 WearablesResearch.com , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
(Date:4/28/2016)... GOTHENBURG, Sweden , April 28, 2016 ... 1,491.2 M (139.9), up 966% compared with the first quarter of ... Operating profit totaled SEK 589.1 M (loss: 18.8) and the operating ... SEK 7.12 (loss: 0.32) Cash flow from operations was ... , The 2016 revenue guidance is unchanged, SEK 7,000-8,500 M. ...
(Date:4/15/2016)... 2016  A new partnership announced today will ... decisions in a fraction of the time it ... high-value life insurance policies to consumers without requiring ... Force Diagnostics, rapid testing (A1C, Cotinine and HIV) ... pressure, weight, pulse, BMI, and activity data) available ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... , ... Supplyframe, the Industry Network for electronics hardware design ... Located in Pasadena, Calif., the Design Lab’s mission is to bring together inventors ... and brought to market. , The Design Lab is Supplyframe’s physical representation of ...
(Date:6/23/2016)... LOUISVILLE, Ky. , June 23, 2016 /PRNewswire/ ... from two Phase 1 clinical trials of its ... double-blind, placebo-controlled, single and multiple ascending dose studies ... and pharmacodynamics (PD) of subcutaneous injection in healthy ... APL-2 subcutaneously (SC) either as a single dose ...
(Date:6/23/2016)... 23, 2016 On Wednesday, June 22, ... down 0.22%; the Dow Jones Industrial Average edged 0.27% lower ... 2,085.45, down 0.17%. Stock-Callers.com has initiated coverage on the following ... Therapeutics (NASDAQ: NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ... BIND ). Learn more about these stocks by accessing ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... of intelligent tools designed, tuned and optimized exclusively for Okuma CNC machining centers ... The result of a collaboration among several companies with expertise in toolholding, cutting ...
Breaking Biology Technology: