Myofibrils slide together.
the other options don't make sense, and the myofibrils sliding together is the mechanism the muscle uses to generate force.
The health insurance company acts as a middle man for the purchase of these medical services. The process is you enroll in a health insurance and pay them on a monthly basis to save for future emergencies. Then, the health insurance company will be the one to communicate with the hospitals for health services.
I am going to assume you are talking about emotion. If that is the case then it's better to let it all out, let the wall fall.
1) don’t use tobacco
2) eat healthy
3) be physically active
4) protect your self from sun
5) get vaccinated
6)avoid risky behaviors
7)get regular medical care
