Is a heart rate of 45 dangerous?

Slow heart beat. If you don't have any symptoms like dizziness, pre-syncope, syncope or fatigue or chest pain or shortness of breath, then you are ok. But you complained of chest pain. Hence it should be treated. Its etiology should be elicited. Thyroid problems and blocks in heart arteries should be ruled out. Consult your physician.
Depends. . Low heart rate (bradycardia) is dangerous when the patient is symptomatic. I.E., light -headed, or becomes unable to respond to stress or exercise. Many athletes have low resting hr because their hearts are fit. At night, most of us have somewhat lower hrs as the demands of our bodies are low. Generally, i don't like to see a hr in a patient less than 50 as it tends not to be well tolerated.

Related Questions

Whats is a dangerous heart rate while doin cardio?

Varies. There is no specific dangerous heart rate during exercise. How fast your heart beats with exercise depends on a number of factors, especially your conditioning. If you are healthy, a heart reate in the 170's or even higher may be ok and tolerated. Now if you have a problem such as coronary disease, the safe heart rate would depend on an assessment by your doctor. A stress test is commonly done. Read more...
Depends on your age. "NormaL" Maximun heart rate is 220 minus your age (220- 22 = 198) That is max. When under supervision (for stress test as an example), it is advisable to get at least to 85% of that heart rate (198 x 0.85 = 168bpm) However: for sustained HR during exercise, you will get benefit from 60-75% of max rate (120- 150 bpm) I hope I did not confuse you with the answer :) Get Started soon. It IS important. Read more...

What do you advise for heart rate of 30. is that dangerous?

Depends. It depends on how long, what time of day, and whether there are any symptoms present. It's not unusual to drop to 30 during sleep or to have a brief spell of 30 while awake. It also depends what caused it: the EKG will have clues. Read more...

What happens if you go over your max heart rate while working out? Dangerous?

No. Really no! you would get exhausted before too long. If you do have a heart issue, though, then it may get acutely worse during strenuous exercise and that would also make you stop. Read more...
Maximal heart rate. Calculations are estimates . If you are heathy enough nothing will happen to you. During exercise you go up to where you can go. I go over mine all the times at 50 y/0. Enjoy your work out. Read more...

While I'm cycling in the morning my heart rate goes to as up as 175bpm with a average of 150bpm. It's that too dangerous or its normal?

Normal. Everyone has an intrinsic "maximal heart rate" which is different for each of us. During a strenuous workout, you may in fact want to get to 95% of your max heart rate. Unfortunately, without a max heart rate test, you don't know what that is. In any event, if you feel good about the effectiveness of your workouts then there is no cause for concern. Read more...