My experience:
Two years ago, my health screening shows that my cholesterol higher than normal.
So I started use extra virgin olive oil in foods and also take Turmeric Curcumin supplement pills,
and Flaxseed oil supplement pills,
And eat heart-healthy foods (google search on "what are the heart-healthy foods).
Last year my health screening shows that my cholesterol level is in normal and healthy level.

So, it is good to have health screening every year.