This world where people live is beautiful, and sometimes harsh.

This old document details the lifestyle of humans.

My biological clock is completely messed up.

Essential fatty acids play an important role in our health.

Essential amino acids are necessary to be taken from our diet because our body cannot produce them on its own.

This is my first question.

A composite number, unlike a prime number, is represented by the product of two or more natural numbers.

I do laundry using synthetic detergent.

This new compound word is popular among young people.

He is involved in the development of androids.