bronchodilating effect of tea
Tea is the world’s oldest caffeine containing beverage. Like tobacco, tea has historically been a commodity that has political power in terms of economics in trade. Typically, tea contains less caffeine than a cup of coffee, although particularly strong brews of tea can approximate the same caffeine level as found in coffee. There is some medical literature that suggests that consumption of tea in moderation does have specific health benefits. For example the bronchodilating effect of tea has been found to be helpful in the treatment of asthma symptoms and other respiratory problems. The flavonoids found in chocolate have been implicated in cardiovascular health by functioning as antioxidants within the bloodstream. There is a positive association or correlation found between the consumption of dark chocolate and reduced risk for cardiovascular disease and stroke. Coffee consumption has been present for several thousands of years and, at least in industrialized societies, has offered an alternative to excessive alcohol consumption in some circles of society. However, it should be noted that consumption of coffee and the caffeine therein can in no way abate the effects of alcohol intoxication or somehow “sober up” an individual faster; this is a common myth. Fortunately, most doses of caffeine taken in individual servings of substances such as a cup of coffee, a bar of chocolate, or a cup of tea are relatively low and benign in terms of their overall affect on individuals.
The most commonly ingested source of caffeine in our society is that of soft drinks or sodas. The largest segment of our population in terms of demographics uses these products. Approximately 95% of the caffeine that is found in soft drinks is artificially added through the manufacturing process; that is, unlike the coffee bean or the tealeaf, the caffeine is not naturally occurring as a part of the substance being consumed. The United States leads the world in per capita consumption of soft drink products. In addition, as has been previously stated, the United States is at the forefront of development of new energy drinks that are marketed for the express purpose of high dose caffeine ingestion. These energy drinks typically can contain anywhere from two to three times the levels of caffeine that would typically be found in a soft drink or single cup of coffee.
Caffeine can also be ingested from over-the-counter products typically sold in pharmacies. Products can range from pain relievers and cold remedies to weight control supplements. Caffeine acts a vascular dilator tour that can be helpful in treating asthmatic conditions as well as headache pain. Still other drugs are expressly designed to keep the individual awake and alert for a sustained period of time. When ingested, caffeine is absorbed into the body in 30 to 60 minutes with peak levels of caffeine seen in the bloodstream about an hour after in just station. Sometimes individuals will describe an immediate boost of energy as a symptom following caffeine consumption; however this is either simply psychological in nature in terms of an expectancy effect or, more likely, related to ingesting the sugar that commonly is paired in drinks.