Your heart rate is dependent on many factors, some of which you can control and others you cannot. Specifically, certain substances that you introduce to your body can have long-term effects on your heart rate. Smoking, alcohol, medications,...
Caffeine is a mild stimulant that can be found in coffee, soft drinks, tea and many plants. Caffeine has been used as a performance-enhancing supplement by athletes because of its metabolic effects and ability to stimulate the central nervous...
Caffeine is a naturally occurring chemical found in coffee, tea, chocolate, sodas, energy pills and drinks, and even medications. Caffeine behaves as a neuro-stimulant by acting as an appetite suppressant and by increasing cognitive awareness....
According to Medline Plus, a service of the U.S. National Library of Medicine, caffeine can be found in beverages such as coffee and tea and foods including chocolate and kola nuts. Most people will experience a boost of energy as the caffeine...
Caffeine is a stimulant to the central nervous system and can raise heart rate. Moderate caffeine consumption can elevate heart rate up to three beats per minute. This can be beneficial for athletes, dieters and those who are hypotensive. If you...
Science has not yet solved all the mysteries of sleep. While many plausible theories seem to explain why your body and brain need it, there are questions that have not been answered with scientific proof. Why do some people need more than others?...
Caffeine is a central nervous system stimulant that temporarily increases attention, alertness and motor activity, reports the University of Michigan Health Service. Alcohol is a depressant, which serves to slow down brain and motor activity....
Your heart is a powerful pump that runs nonstop to keep blood and oxygen circulating throughout your body. The rates of the blood-pumping contractions of your heart are controlled by a very complex biological, electrical system. This electrical...
Caffeine is a stimulant. It affects your central nervous system and can cause your heart to beat faster. People react differently to caffeine, and you can develop a tolerance over time, so there's no way to predict the exact effect caffeine will...
Caffeine, found primarily in coffee beans and tea leaves, is a stimulant to the central nervous system. It is the most widely consumed stimulant in the world. A stimulant gets your body moving, including your heart rate. Reports on the effects of...
A normal resting heart rate is somewhere between 60 and 100 beats per minute. Many factors can influence your heart rate, including your emotions, temperature, body position, physical activity, body size, level of fitness and the food and drink...
Caffeine is a bitter crystalline alkaloid found in coffee, tea, soft drinks, chocolate, nuts and over-the-counter medications. Caffeine is a psychoactive substance often taken to help people wake up and feel more alert. According to Medline Plus,...
Many people regularly consume caffeine. Some people even joke about needing their caffeine "fix" every morning to function properly. And if you ingest it regularly, you can definitely become physiologically dependent on caffeine. But you may not...
Caffeine is a stimulant present in soda, tea and coffee. Stimulants, like caffeine, increase heart rate and blood pressure by causing a series of chemical reactions in your heart and adrenal gland. After drinking or eating caffeine, you feel...
Weight loss efforts are helped by a sensible diet and exercise. Certain foods contribute to weight loss success. Before embarking on a diet plan to lose weight, please consult with a nutritionist or other licensed health care practitioner to work...
A rapid pulse may be a minor symptoms of some stimuli or a sign of a major medical condition. Sometimes, a high pulse rate is simply caused by something you ate or drank. Other times, it may signal that something is wrong internally and it's best...
Chocolate is known for its savory texture and taste, but this decadent treat also provides medicinal qualities. Preliminary evidence suggests chocolate contains compounds known to reduce the risk of developing coronary heart disease; however, this...
Because caffeine is a stimulant, caffeinated soda may give you a jolt of energy and improve your concentration. It will also make you go to the bathroom more. Caffeine is a diuretic, a substance that rids the body of fluids and increases...
Guarana is a traditional herbal supplement made from the guarana plant, a bushy plant that grows in the Brazilian rainforest. Many health supplements are available that contain guarana, often mixed with other herbal supplements, and guarana is...
Metabolism is the process of burning energy, or calories, to run your body. Your metabolic rate refers to the speed at which you burn those calories. By speeding up your metabolism, your body may burn more calories, leading to weight loss. Certain...
Caffeine, in its various forms, is one of the most popular and widely used drugs and food additives in the world, with around 90 percent of people ingesting it in one form or another, according to the U.S. Food and Drug Administration. It occurs...
Caffeine is a naturally occurring substance found in an array of foods, including coffee and chocolate. Many people consume products that contain caffeine because of the energizing effect of this compound. Caffeine acts by stimulating the body's...
Caffeine is one of the most widely available drugs in the world. According to National Geographic Magazine, it is the world's most popular psychoactive drug. Because of its effects, people can become addicted to caffeine. As with many addictive...
Caffeine affects many body systems simultaneously. Sometimes the effects are complementary, but other times the effects counteract one another. Further, if you have caffeine sensitivity, a tiny dose might affect you as severely as a large dose...
You may be caught off guard if you notice your heart rate begin to increase when you eat a meal. A rapid heart rate is never a good sign and needs to be evaluated by your medical doctor. If you notice that your heart rate only increases when you...
As in any weight loss program, the goal is to burn more calories and fat than you consume each day. In addition to exercise, certain foods can help you get there. Natural fat-burning foods help increase metabolism, or the rate your body burns...
You need to start making health decisions for two once you become pregnant. You may already know that drinking alcohol and smoking can harm your growing baby, but seemingly innocent habits may also be dangerous. For instance, if you typically...
Caffeine is found in coffee, tea, soft drinks, chocolate, kola nuts and certain medicines. It stimulates the nervous system and is commonly used to maintain energy and alertness. A moderate daily dose of caffeine is 200 to 300 mg, equivalent to...
Fat burning foods burn more calories than the calories in the food itself. They do this by increasing metabolism, or the rate your body burns calories while resting. Natural fat burning foods also remove stored fat from cells quickly to break down...
