It is important to pursue your own happiness.

Overdose may have a negative impact on health.

His phone rang while he was in the middle of a meal.

Essential fatty acids are important nutrients for our health.

Essential amino acids cannot be produced in the body, so they need to be obtained from the diet.

Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

He thinks that war is a necessary evil.

His body is very healthy.