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Doctor insights on: Effect Of Caffeine On Heart Rate Of Daphnia Experiment

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How much does caffeine and nicotine affect heart rate?

How much does caffeine and nicotine affect heart rate?

Caffeine and nicotin: Both caffeine and nicotine can cause the heart rate to increase. The degree of heart rate increase depends on dose of drug and state of heart.

Heart Rate (Definition)

Heart rate is a measurement of the number of times a person's heart beats in one minute. Normal heart rates vary with a person's age and with excitement and exercise. Abnormal heart rates are too slow, too fast, and/or irregular (too much ...Read more


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What is the best way to lower a person's heart rate back to 60-100 beats per minute if that person has a BPM of 320 from caffeine? Thanks!

What is the best way to lower a person's heart rate back to 60-100 beats per minute if that person has a BPM of 320 from caffeine? Thanks!

Not caffeine: When you say, "bpm of 320 from caffeine" I am assuming that you are saying your heart rate is 320 beats per minute. A heart rate that fast is not simply the stimulate effects of caffeine. If your heart rate is 320 bpm, you need emergency evaluation today for arrhythmia due to an abnormal mechanism.

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Why does caffeine slow down my heart rate? If I drink coffee, tea or anything with caffeine my heart slows alot. What would cause this?

Why does caffeine slow down my heart rate? If I drink coffee, tea or anything with caffeine my heart slows alot. What would cause this?

Atypical reaction: Cannot say in your particular case, but generally, of course it speeds up the heart a little bit. If the change was under 10 beats per minute it is just coincedence. Assuming the heart rate really did decrease there are still several possibilities. One is there is a reflex slowing of the heart if the blood rpessure increases. Or stimulation of the gut (vaso vagal reaction) or relaxed w. drink

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I took 300 mg of caffeine in Feb. I reacted badly with fast heart rate and shaking. I did not go 2 ER. I still feel bad. What possible damage occurred?

I took 300 mg of caffeine in Feb. I reacted badly with fast heart rate and shaking. I did not go 2 ER. I still feel bad. What possible damage occurred?

Unlikely: It would be very unlikely that any damage has occurred based on what you have described. Other over the counter products such as pseudofed can have similar effects as caffeine. as well as foods and beverages can also have lower doses of caffeine that could be contributing. Hope that helps

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I heard that b vitamins speed up heart rate similar to caffeine. Could this be bad for your heart?

I heard that b vitamins speed up heart rate similar to caffeine. Could this be bad for your heart?

Generally no: B vitamins affect metabolism and nervous system function but do not have alpha/beta effects that is the cause of heart rate up/down with certain meds/herbs.

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Fast heart rate and diarrhea. Took caffeine pills over 10 hrs ago. Go to ER?

Fast heart rate and diarrhea. Took caffeine pills over 10 hrs ago. Go to ER?

Yes, if...: Feel faint, chest discomfort, lightheaded, sweats, abdominal pain, vomiting, can't keep anything down, feel like you are jumping out of your skin, panic, etc. Caffeine can cause or aggravate arrhythmias ("funny" heart rhythms), especially in setting of certain other meds, or baseline disorders. Caffeine pills and "energy" drinks have caused some significant problems for some people-not reccomended.

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Today at 10 weeks pg my baby's fetal heart rate was 198 bmp what could cause this? I hadn't had any caffeine? Is everything ok?

Was doc concerned?: Was your doctor concerned with this finding at your visit today? Very specific issues are best dealt with individually. A fast heart rare at ten weeks is not something we usually focus on

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I am experiencing difficulty breathing, rapid heart rate. Haven't had caffeine in 4 months. Had acute pericarditis.?

I am experiencing difficulty breathing, rapid heart rate. Haven't had caffeine in 4 months. Had acute pericarditis.?

See doctor: You need to get a doctor to evaluate your symptoms. There are many potential causes given your history.

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If you have a high heart rate and muscle twitching will you be ok? Its been about an hour since the last drink of caffeine and it got better for a min

If you have a high heart rate and muscle twitching will you be ok? Its been about an hour since the last drink of caffeine and it got better for a min

Fast rate: It takes longer than an hour for the heart rate to return to normal (55 -90) if a significant amount of caffeine was ingested. Alcohol also affects the heart rate. For some people 55 is a normal rate and for others, 90 would be normal.

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Fast heart rate around 100-110 bpm. Healthy and active, limited caffeine use, normal blood tests, EKG for heart murmur when I was young was normal??

Fast heart rate around 100-110 bpm. Healthy and active, limited caffeine use, normal blood tests, EKG for heart murmur when I was young was normal??

Possibly: Having a slightly high heart rate with no other symptoms could be normal or due to anxiety. Granted you had an EKG when you were younger it might be wise to see your doctor if recheck of that would be indicated. Good luck.

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I'm overweight and 24, my life is pretty sedentary now but I grew up very active. I cut my caffeine intake and my heart rate has been consistently lower than I'm used to. I suffer from panic, and chronic fatigue syndrome. I woke up rested for the first ti

I'm overweight and 24, my life is pretty sedentary now but I grew up very active. I cut my caffeine intake and my heart rate has been consistently lower than I'm used to. I suffer from panic, and chronic fatigue syndrome. I woke up rested for the first ti

Therapy?: In addition to what needs to be evaluated for you physically, have you yet tried any form of psychotherapy? Typically, the optimal combination of things to treat emotional issues such as panic/anxiety/depression is medication (which, on your best day, is supposed to take the edge off symptoms) but the real gruntwork takes place in psychotherapist's consulting room.

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I have a high heart rate, muscle twitching, shaking, and am lightheaded. I drank too much caffeine it got better for a minute then came back. Wil I be ok?

I have a high heart rate, muscle twitching, shaking, and am lightheaded. I drank too much caffeine it got better for a minute then came back. Wil I be ok?

If you are worried: Go to an urgent care center, especially if you are feeling lightheaded. Caffeine can do all the things you are experiencing, and you need to avoid using that much caffeine in the future. Despite the fact that there is caffeine in coffee, the amount in some of these energy drinks is much higher, and can have some nasty effects.

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I always feel wired/excited feeling in my chest/stomach with fast heart rate and dizzy. No meds, caffeine, sugar, carbs, or thyroid issue,????

I always feel wired/excited feeling in my chest/stomach with fast heart rate and dizzy. No meds, caffeine, sugar, carbs, or thyroid issue,????

Tachycardia: Check for reflux, gastritis h pylori as well as mitral valve prolapse- with echocardiogram and WPW Wolf Parkinson on White syndrome or other conduction issues (can do this by plain EKG).

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Heart rate decreases with caffeine/adderall, is this normal?

Heart rate drops: For Adderall (dextroamphetamine and racemic amphetamine) and caffeine to cause a decrease in heart rate suggests the substances are helping your anxiety and frustration and providing you with relief. Usually both substances cause an increase in heart rate.