In brief: The heart is a muscular organ that keeps blood circulating continuously.
What the heart organises
| Function | Role |
|---|---|
| Pulmonary circulation | Enables oxygen uptake |
| Systemic circulation | Supplies organs |
| Heart rate | Adapts to demand |
| Blood pressure | Regulated together with blood vessels |
Training and the heart
Regular physical activity improves cardiovascular fitness. Chest pain, fainting or unusual breathlessness should be assessed.
FAQ
Does the heart always beat at the same rate?
No.
Can training lower resting heart rate?
Often in trained people.
Is a low pulse always healthy?
No.
When are heart symptoms urgent?
With chest pain, fainting or severe breathlessness.
Conclusion
The heart constantly adapts its work. Fitness supports performance but does not replace assessment of unusual symptoms.