On what basis is blood classified into various groups?

On what basis is blood classified into various groups

An ambulance rushes its way to the E.R. with a patient in critical condition when the doctor advises that the patient needed a blood transfusion. It takes a little while before he can be transfused with blood due to some protocols. Blood is essential to all human beings, even animals. It circulates … Read more

Which is the heaviest organ in human body?

Which is the heaviest organ in human body

You might be surprised, but the heaviest organ in the human body is the skin, which makes sense as it is also the largest organ in the body. There are around 60 organs in the body, with each one performs specialized tasks. They aren’t all internal like the heart or the brain. … Read more

Why do our faces keep warm without clothes?

Why do our faces keep warm without clothes

It’s the middle of winter, and you are standing on the bus stop, and you suddenly feel a cold breeze blow against you – your whole body shivers. You tend to cover your fingers and press your arms against your body to keep your body warm. However, amid this cold weather, you … Read more

Why does laughter bring tears to the eyes?

Why does laughter bring tears to the eyes

Crying is an inevitable part of the human emotional package, whether you like it or not. Women tend to be better at it than men, with the women having an estimated 50 cries per year, while men only have 10 annually. Of course, we know that crying usually elicits from sadness and … Read more

What causes some people to faint all of a sudden?

What causes some people to faint all of a sudden?

Fainting, also referred to as Syncope, occurs when you suddenly lose consciousness, due to a drop in your blood pressure or when your brain fails to get sufficient amounts of oxygen. While the cause of fainting often tends to be minor, it can also be an indication of an underlying illness. Individuals … Read more

What is tetanus? What causes it?

What is tetanus? What causes it?

When you were a kid, have you heard your parents telling you always to wear your slippers or shoes whenever going out of your house, and avoid stepping on the ground bare-feet? Aside from your feet may be thorn by sharp and pointed objects on the ground, maybe, your mother knew about … Read more

Why our height increases a little during night’s sleep?

Why our height increases a little during night's sleep

If you were given a chance to choose between being the tallest or the smallest man on Earth, what would you prefer? How is a person increase in height, and why are there extremes when it comes to height – shortest or tallest? What contributes to the increase in a person’s height? … Read more

Is there a color that human eyes can not see?

Is there a color that human eyes can not see?

There is more to light than what meets the eye. An average human eye can see about one million colors. Some people can see 100 times more hues. However, the most intriguing question is how many colors are invisible. Yes, there are colors that human eyes cannot see. There is a secret … Read more