The intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment. A particular branch of scientific knowledge; "the science of genetics"

The human brain is like a powerful computer that stores our memory and controls how we as humans think and react. It has evolved over time and features some incredibly intricate parts that scientists still struggle to understand. The brain is the center of the human nervous system, controlling our thoughts, movements, memories and decisions.

Apples are a very good fruit for building healthy bodies. It is fat free may help reduce the risk of some types of cancers. Also it is sodium free may help reduce the risk of high blood pressure. And its cholesterol free helps keep your heart healthy and may help protect against cardiovascular disease.