Caffeine is among the most commonly consumed drugs in the world. It is found in coffee, tea, chocolate and soft drinks. The consumption of caffeine has several significant effects on the bladder. Since the drug is a stimulant, caffeine increases metabolic activity throughout the body.

The common and convenient practice of drinking water and other beverages from plastic bottles comes with downsides. You already know that buying a bottle of water costs more than filling a glass or reusable bottle at the tap. Using plastic drinking bottles also produces negative effects on health and the environment.

Caffeine is the bitter substance that boosts the central nervous system to supply the energy that so many people rely on each day. While coffee may be the most familiar source of caffeine, guarana, an herb that comes from the Amazon rain forest, can provide the same energy-enhancing benefits.

Plants such as coffee, tea and cacao contain caffeine. Caffeine stimulates the central nervous system promoting wakefulness by competing for adenosine receptors. Adenosine is produced by the body to promote sleep and constrict blood vessels to allow more oxygen into the brain during sleep.

Sugar and caffeine are two of the most commonly used substances in Western societies. Solid evidence supports the conclusion that caffeine is an addictive drug. While the research on sugar is still inconclusive, evidence is beginning to emerge suggesting that sugar might be addictive as well.

Often steeped in controversy and skepticism, subliminal messages operate on the premise that the human mind can be manipulated through hidden messages within audio recordings or video advertisings.

Dicalcium phosphate is a calcium supplement commonly found in prepared breakfast cereals, in pharmaceuticals as an inert ingredient to bind tablets, and in toothpastes. However, too much dicalcium phosphate, or dicalcium phosphate taken in conjunction with other medications, can have negative consequences.

Pregnancy can cause a woman's body to change shape and size several times before the baby arrives. It isn't uncommon for a woman to wake up and be unable to button the pants she wore the night before. Sometimes clothes are uncomfortably tight or they place pressure on certain parts of the body. Marjorie Greenfield, M.

First brewed by Dr. John Stith Pemberton in 1886, Coca-Cola has grown into the world's best-selling soda brand. According to trade publication "Beverage Digest," Coca-Cola held a 17 percent share of the U.S. soda market in 2009, selling nearly 1.6 billion cases.

Caffeine is a widely used psychoactive drug found in many drinks, such as coffee, tea and cola. Caffeine is naturally present in the leaves and seeds of a variety of plants. Consuming caffeine has significant physiological effects on your body--one being its direct effect on your heart rate.

Many people are drawn to the effects of caffeine delivered in coffee, tea, soft drinks and supplements. Though people's responses to caffeine vary, it is generally considered a mild stimulant. According to MedlinePlus.