Results 261 to 270 of about 168,979 (308)
Some of the next articles are maybe not open access.

Extraction of caffeine

Journal of Chemical Education, 1972
Much greater yields can be obtained by extracting caffeine from No-Doz tablets than coffee or tea.
openaire   +2 more sources

Anxiety and Caffeine

Psychological Reports, 1978
The relationship between anxiety and caffeinated beverages was studied using Spielberger's questionnaire and additional questions concerning the consumption of alcohol, cigarettes, and the students' estimated GPA. Subjects were 68 female and 23 male students.
openaire   +2 more sources

Caffeine and the Elderly

Drugs & Aging, 1998
The most common source of dietary caffeine among the elderly is coffee, with consumption averaging about 200 mg/day. Because of the greater proportion of adipose tissue to lean body mass in older humans, and because caffeine is distributed essentially only through lean body mass, a dose of caffeine expressed as mg/kg total bodyweight may result in a ...
openaire   +2 more sources

Caffeine and Exercise

Current Sports Medicine Reports, 2003
Caffeine is the most commonly consumed drug in the world, and athletes frequently use it as an ergogenic aid. It improves performance and endurance during prolonged, exhaustive exercise. To a lesser degree it also enhances short-term, high-intensity athletic performance. Caffeine improves concentration, reduces fatigue, and enhances alertness. Habitual
openaire   +2 more sources

Caffeine and the eye

Survey of Ophthalmology, 2019
Caffeine, a popular psychostimulant that acts as an adenosine receptor antagonist, is the most widely used drug in history, consumed daily by people worldwide. Knowledge of the physiological and pathological effects of caffeine is crucial in improving public health because of its widespread use.
Jinny J, Yoon, Helen V, Danesh-Meyer
openaire   +2 more sources

Caffeine and pain

Pain, 2011
abstract 2010 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved. 1. IntroductionCaffeine is widely consumed for its central nervous systemstimulant effects such as increased alertness and decreased fatigue.It is present in a variety of beverages (coffee, tea, energy drinks)and some foods (chocolate ...
openaire   +2 more sources

Caffeine and headaches

Current Pain and Headache Reports, 2007
Caffeine is the most widely consumed psychostimulant drug. It is a potent antagonist of adenosine receptors at dosages consistent with common dietary intake. With infrequent exposure, caffeine may act as an analgesic for headache or an adjuvant for the actions of other analgesics. With chronic repetitive intake, caffeine is associated with an increased
openaire   +3 more sources

Caffeine headaches

Nursing Standard, 1989
Postanaesthetic headaches may be due to caffeine withdrawal, researchers from London say.
openaire   +2 more sources

The pharmacology of caffeine

1987
Caffeine is a natural constituent of more than 60 plant species and as such is present in the human diet through drinks based on plant extracts. It has also been used as a flavoring agent in food (baked goods, dairy desserts, puddings and fillings, candy) and beverages (Dr.
openaire   +2 more sources

Caffeine and Performance

International Journal of Sport Nutrition, 1995
Caffeine ingestion (3-9 mg/kg body weight) prior to exercise increases performance during prolonged endurance exercise and short-term intense exercise lasting ~5 min in the laboratory. These results are generally reported in well-trained elite or recreational subjects.
openaire   +2 more sources

Home - About - Disclaimer - Privacy