No list? Lifestyle factors that people can change to improve their health would be things such as: Physical Training (Physical Activity), Eating a healthy diet, going outside more, etc.
I hope this is the answer you were looking for and that it helps!! :)
Answer:
your answer would be sinus node (also called the sinoatrial node, or SA node).
Explanation:
Hi there
The answer you are looking for is
health
They are all made of tissue and cells.