Hypervitaminosis occurs when the intake of vitamins is too high.

He has prosopagnosia, which makes it very difficult to remember faces.

The Security Council is the main organization for maintaining international peace and security.

The National Security Council was convened to make important policy decisions.

Einstein proposed the theory of relativity.

His actions always have a duality.

My younger brother caught the influenza.

This material has high corrosion resistance.

This equation has homogeneity.

Radioactive elements are produced in nature and scientific experiments.