7 doctors weighed in:

My resting heart rate is 60-70 in the morning/evening but can shoot up to 90s throughout the day. Why is it higher during the day? Smoke+have stress

7 doctors weighed in
Dr. Jennifer Peura
Internal Medicine - Cardiology
4 doctors agree

In brief: 90 is normal

When you are out and about your body needs more energy, needs more blood flow.
The cardiac output is increased by increasing the heart rate. Stimulants: caffeine, nicotine contribute too.

In brief: 90 is normal

When you are out and about your body needs more energy, needs more blood flow.
The cardiac output is increased by increasing the heart rate. Stimulants: caffeine, nicotine contribute too.
Dr. Jennifer Peura
Dr. Jennifer Peura
Thank
Dr. Calvin Weisberger
Internal Medicine - Cardiology
2 doctors agree

In brief: Stress

You answered your question.
Stop smoking and learn to deal with stress.

In brief: Stress

You answered your question.
Stop smoking and learn to deal with stress.
Dr. Calvin Weisberger
Dr. Calvin Weisberger
Thank
Get help from a real doctor now
Dr. Tonga Nfor
Board Certified, Internal Medicine - Cardiology
12 years in practice
508K people helped
Continue
108,000 doctors available
Read more answers from doctors