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Directly or indirectly, mostly sympathetic nervous system. The sympathetic nervous system is responsible for the 'flight or flight' response which was first studied by Walter Canon. The role of the sympathetic nervous system is to prepare the body for action, and in the case of caffeine, it makes you more alert, raises your blood pressure, and increases your heart rate.

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Is cacao a stimulant?

Yes, cacao contains stimulants such as caffeine and theobromine, which can have a stimulating effect on the body.


Does caffeine consumption lead to increased urination?

Yes, caffeine consumption can lead to increased urination due to its diuretic effect, which can stimulate the kidneys to produce more urine.


How does caffeine intake affect calcium absorption in the body?

Caffeine can interfere with calcium absorption in the body by increasing the amount of calcium excreted through urine. This can potentially lead to a decrease in calcium levels in the body over time. It is recommended to consume caffeine in moderation and ensure an adequate intake of calcium-rich foods to maintain healthy calcium levels.


What effects do chemicals such as caffeine have on unicellular organisms?

Chemicals like caffeine can have a stimulatory effect on unicellular organisms by increasing their metabolic rate and enhancing their activity. In some cases, caffeine can also act as a toxin, leading to cell death if the concentration is too high. Overall, the response to caffeine would depend on the species of unicellular organism and the concentration of caffeine present.


What effect does caffeine have on ADH levels?

Caffeine inhibits ADH causing the levels in the body to lower. Anti-Diuretic Hormone is released when the body wishes to conserve water. The hormone tells the kidneys to reabsorb more water which results in urine becoming concentrated. Alcohol has a similar effect which is why, when it inhibits ADH, the body no longer attempts to conserve water. This results in frequent urination which eventually becomes clear as less waste has accumulated in the urine. The following morning after heavy drinking, the body is dehydrated resulting in concentrated urine. Coffee and caffeinated beverages are the worst hangover cures for this reason and will only starve the body of water further - resulting in a prolonged hangover!

Related Questions

Is caffeine known to have an acidic effect on the body?

Yes, caffeine is known to have an acidic effect on the body.


What is a effect that caffeine can have on the body?

the effect of caffeine is it keeps you awake and keeps the movement of the body 2 as faster


How caffeine has an effect on the body?

if you ran for 30 min , you would ran for seven min more. caffeine can say in your body for 5 hours.


How does caffeine consumption affect testosterone levels in the body?

Caffeine consumption can temporarily increase testosterone levels in the body, but the effect is not significant or long-lasting.


Hoe does caffeine effect you?

It was meant to be "how do caffeine effect you?".


How does Caffeine effect the human body?

Caffeine is great for concentration, it improves memory. 1-4 cups per day is good.


Which two body functions does caffeine have a negative effect?

Caffeine can increase heart rate and blood pressure. An overdose can cause a heart attack.


Does caffeine have an effect on life expectancy?

There is some argument to the effect that high caffeine intake may affect health and life expectancy in general by interrupting the natural sleep cycle and the quality of sleep. Caffeine itself has not been shown to be harmful in the sense of its direct effects on body systems. It would seem to be a case of "good things in moderation." The maximum recommended daily intake of caffeine is around 400 mg/day, or about 4 strong cups of coffee.


What is the effect of caffein on the body?

Caffeine in the body raises blood pressure. It also increases heart rate. Caffeine is something that should be consumed in moderation by most people, to avoid problems.


Can caffeine effect your heart rate?

Yes. It is a drug that is classed as a stimulant because it stimulates the body's systems. The heart speeds up and blood is pumped faster around the body. The kidneys become more active and they use more water from your body to do this - so you dehydrate.


How does caffeine affect the body if abused?

Mixing caffeine with alcohol fools you into thinking that you are not as drunk as you really are. That can easily affect your whole body -- permanently.See the link below for recent research.


Is cacao a stimulant?

Yes, cacao contains stimulants such as caffeine and theobromine, which can have a stimulating effect on the body.