Nowadays, iIt is easier for people living now to maintain good health than for those livingwho lived in the past.

Saying "nowadays" and then referring to "living in the past" is a little weird to me. "Living in the past" is an expression used to refer to someone who hasn't moved on from a certain event in their life.

When asked aboutwhether ist its easier to maintain good health in the present-day than in the past?,

Mmost people strongly support the idea that it is much more easier than before, while otherssome disagree.

If you say "while others disagree" it makes it sound like a 50-50 split. Also I combined the two above sentences, that probably won't come across clearly on this platform just yet. easy -> easier -> easiest (no more/most needed)

Personally, I side with the firstormer.

We have "former" and "latter" to refer to things previously mentioned. Where "former" is the first thing that was mentioned and "latter" the last.

To begin withFirstly, most of governments provide an all-roundcomprehensive health care systems to citizens thatso they have a better chance to maintain their good health.

or "...most governments provide comprehensive health care...". "Health" is implied to be good (until "bad" is put in front of it)

As a government, strives forStriving to maintain the well-being of the citizens is a vital goalstep in order to govern the country successfully.

Having aA good health system which will take good care of their people and live longer benefits governments.

You're missing a main idea. You just have a subordinate clause here. Maybe... "Having a good health system allows people to be happier and live longer"?

Suppose a patient haves a health problem, thanks to developed technology, he is able to discover the the problem early, be treated and recover as soon as possible.

Moreover, people haveknow more health knowledgeabout maintaining health than before.

"health knowledge" feels weird, we don't really use knowledge by putting a noun in front of it. You either "have knowledge about something" or you "know something".

The conception of health is developinged by our education.

Do you mean by universities and labs or that kids are being taught about health in school?

More and more people are concerned about the nutrition balance and body health.

or "more and more people concern themselves with nutrition balance ..."

For instance, most of familyies have refrigerators at home.

If they have leftovers, they will put ithem into the refrigerator and finish ithem soon./a little later/shortly after,

It is because they have the conception ofknow putting food into cooler thatthe fridge will not get worse.

"get worse" or "rot" or "go bad/off" or "spoil". Combined the two above sentences.

Yet, people in the past, did not have this technology to store the food, so it was possible have somedevelop health problems after consuming spoilt food.

better to state the connection between health problems and food. spoilt (british) = spoiled (american)

So the knowledge ofregarding health is essentially important to people which will maintain our good health for people to maintain theirs.

Of course, some people might say that it is more challenging to maintain good health nowadays than those living in the past.

It is because people are too busy to cook by themselfves and it is because toovery convenient to eat outside.

combined sentences

In most Asian countries, for example, people usually work overtime, w. When they are off duty, they are not willing to buy goods from supermarket, and cook byfor themselfves, since/because it is time consuming.

So they prefer eat outside which th where food is more salty and sweetly than the onefood made at home.

However, I believe that it is easier for people to maintain good health of the timenow.

It either we have anWe have access to either all-round health care systems or know how to maintain good health knowledge.

People have a far more greater chance, after all, of living in a health life.

great -> greater -> greatest