A man wearing a typical white lab coat, who was still in his 30s entered the classroom. His face brown and hair black, from his looks he seems to be from Indian origin. His name was Felix Brown, a scholar and top-class surgeon in the field of medicine.

He teaches only a single class, that's Alexander's class.

He entered the classroom with his normally calm face and stood at the podium to begin the lecture. Before beginning the class, he scanned throughout the class and then his face turned a bit odd.

He coughed and said, "Cough, Cough .. Sorry students I entered the wrong classroom. "

When he was about to pick up his bag and leave, Hazel stood up and said, "Sir, it's your class and you entered the right classroom."

Mr. Felix who was feeling something was off, also came back to his senses.

' Why does it feel something is wrong! '

' It's my class, but something is not right! '

To clear his doubts he scanned through the classroom again and again and then came to the shocking conclusion.

' Alexander and his friends aren't sleeping but are sitting in front to listen?! '

' Is this a dream? '

He pinched himself on his thighs.

A look of pain surfaced his face for a bit before being filled with surprise and confusion.

' If this isn't dream then why are these four sitting at the front? '

Alexander who was looking at the confused expression of the professor starring at him already guessed his thoughts.

He stood up from his desk and said respectfully,

" Professor, I have decided to change myself and start learning under you! "

He then bowed a down a bit and continued,
" I hope you can forget my past and take me as a new student. "

Professor Felix as well as other students, all were shocked.

'Alexander decided to change?! '

'How is he speaking so respectfully? He was a hooligan before! '
Professor being older than everyone else came back to reality earlier. He nodded at Alexander and said with a serious expression,

" Looking at your attitude, I believe that you have decided to change! I had always hoped that you and your friends could change yourselves and take the benefit of reading at a great institute. "

" Good! Very Good! I am really happy because of the changes! "

Listening to the professor's voice and remarks, Alexander felt nostalgic. He in his previous life had a professor who taught him until he reached his deathbed, even before dying he told Alexander, " Good! Very Good! I am proud of myself and not you! I taught a student like you! Well done! "

" Ok, now we will start our classes. In the last class, we studied about glands and their secretion and functions. We learned about the pituitary gland, adrenal glands, pancreas... "

Professor Felix began his lecture without wasting any time.

As the class was going forward Alexander was not listening to the professor and reading his book on genetic information and gland transformation. The book deals with how genetic codes determine the age and efficiency of a gland.

Professor Felix who was lecturing noticed the book Alexander was reading and nodded.

"Ok since we have ended our discussion, I'll ask you questions. "

" Since Alexander decided to change himself and was learning with concentration today, therefore I'll ask him first."

Alexander stood up to receive the question with a straight back. He stood there in a calm and lifeless manner. There was also a gentle smile on his face.

To others, this action of him was due to him being terrified due to sudden questions from the professor.

There was again a series of discussions in the classroom.

' Serves him right! He dared to talk to Princess Hazel! '

' He wanted to show off?! Now show off! '

' Great! Now I'm feeling good! '

" Alexander since you are trying for the first time! I'll ask you a simple question to explain the working of insulin. "

Professor Felix asked his question.

Alexander smiled and nodded before starting the answer,

" In simple words, Insulin is a hormone made by one of the body's organs called the pancreas. Insulin helps your body turn blood sugar (glucose) into energy. It also helps your body store it in your muscles, fat cells, and liver to use later when your body needs it.

After you eat, your blood sugar (glucose) rises. This rise in glucose triggers your pancreas to release insulin into the bloodstream. Insulin travels through the blood to your body's cells. It tells the cells to open up and let the glucose in. Once inside, the cells convert glucose into energy or store it to use later.

Without insulin, your body can't use or store glucose for energy. Instead, the glucose stays in your blood. "

Shocked!

Extremely Shocked!

Not only Alexander explained it! He explained it better than professor Felix!

Professor Felix was excited too, he shouted out,
" I knew, if that brain of yours starts working, it'll create miracles. "

" Everyone! Since you have listened to the answer. Remember it well! That was really a good explanation! "