how would your life be different if cardiac muscle and smooth muscles were voluntary muscles? i will give brainliest

These muscles push materials like food or blood through organs. Unlike skeletal muscle, smooth muscle can never be under your control.

Explanation:

Cardiac muscle is also an involuntary muscle, found only in the heart. Cardiac muscle differs from skeletal muscle in that it exhibits rhythmic contractions and is not under voluntary control. The rhythmic contraction of cardiac muscle is regulated by the sinoatrial node of the heart, which serves as the heart's pacemaker.

It would be REALLY hard to live

Explanation: If cardiac muscles turned from involuntary to voluntary, you would have to constantly think and control your heart's beating and other veins/arteries' functions. Sure, you could grow to instinctively beat your heart like breathing, but overall it wouldn't be the best since the brain is more occupied. On the plus side, you could rid yourself of heart problems (Not including infections or defects) with the right skill if you are considering that the cardiac muscles contract or relax. Soft muscles, like the ones making up most of our organs, are mostly are involuntary, so that would mean that almost everything would be voluntary. From stomach contractions to urination, soft muscles control all. If soft muscles were voluntary, in short, the brain would be overloaded with tasks and would probably be exposed to an unhealthy amount of 'stress' which could make the brain fail, just like dying from overwork.

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made