Why Do We Blink?

Blinking is a seemingly simple action but there are some rather complex reasons for this quick closing and opening of…

Why Do Knuckles Crack?

There are really several reasons that our knuckles crack. But before we get into the details, let’s get a better…

Why Do People Burp?

That’s a very good question. Some people can put air into their system and burp on purpose, but most of…

How Does Sunscreen Work?

Our skin is sensitive to the effects of sunlight, which is strong enough to cause major changes in the skin…

Why Do We Feel Hungry?

Many people think that we feel hungry because of our empty stomach but this is wrong. A person, who is…

What Is Diabetes?

When someone mentions diabetes the usual reaction is one of sadness, worry and even a bit of horror. Most people…

Why Do People Yawn?

There are a several theories about yawning and why people yawn. While medical personnel and researchers have a good idea…

Why Is Exercise Important?

Perhaps the simplest answer to this important question is: Exercise is important because it makes us feel better. Feeling better…