Cancer

Cancer is a word we hear too often, but what exactly is it?

Simply put, cancer happens when some cells in your body start to grow out of control. Normally, your body’s cells grow, divide and eventually die to keep everything working well. But sometimes, things go wrong and cells grow and multiply when they shouldn’t. This is what we call cancer.

Your body is made up of trillions of tiny cells. These cells work together to keep you healthy. Each cell has a set of instructions, like a recipe, that tells it how to grow and divide. But sometimes, the instructions can get messed up—kind of like using the wrong ingredients in a recipe. When this happens, the cell can become damaged and start growing uncontrollably, creating more and more bad cells. These cells can form a lump called a tumor.

Not all tumors are bad. Some tumors are benign, which means they don’t spread or cause serious harm. But other tumors are malignant, which means they can invade nearby areas of the body and spread to other parts. This is the kind of tumor we usually talk about when we say “cancer.”

Each type of cancer is different and doctors treat them in different ways.

Cancer cells can travel through the blood or lymph system, making it important to find and treat cancer early before it has a chance to spread.

There are several ways to treat cancer, and doctors choose the best treatment depending on the type of cancer and how far it has spread. Some common treatments are surgery, chemotherapy, radiation therapy and immunotherapy.

Sometimes people need more than one type of treatment and the goal is always to remove or destroy as many cancer cells as possible.

There’s no guaranteed way to prevent cancer, but there are things you can do to lower your risk. Here are a few tips: Don’t smoke, don’t eat sugar and use non-toxic sunscreen.

Staying active can also help keep your body healthy and lower your risk of many diseases, including cancer.

Understanding How Our Bodies Use Oxygen and What Happens in Cancer Cells

Our bodies use oxygen to turn food into energy, allowing us to breathe, move, and live.

Every time we breathe in, our bodies take in oxygen, which is used by our cells to create energy. Inside each cell are tiny structures called mitochondria. They work like small power plants, breaking down food molecules and creating energy through a process called cellular respiration. As they do this, they release waste products like carbon dioxide (CO₂) and water vapor, which we exhale when we breathe out.

What Happens if We Don’t Get Enough Oxygen?

If we stop breathing or our cells stop getting oxygen for any reason (like a heart attack), our bodies have a backup method to make energy—one that doesn’t require oxygen. This backup system uses a process called fermentation to produce energy, but it’s less efficient and produces different waste products, mainly lactic acid and succinic acid.

These acids build up in the body when there’s not enough oxygen. If oxygen returns (such as after the heart starts beating again), the cells can switch back to using oxygen to produce energy. But if the cells go without oxygen for too long, they can die.

How Poisons Like Cyanide Affect Oxygen Use

Poisons like cyanide prevent cells from using oxygen entirely, which stops energy production and can cause death very quickly. Cyanide prevents oxygen from helping the mitochondria create energy, so cells can’t function properly, and the body shuts down.

Cancer Cells and Energy Production

Here’s where cancer cells differ from normal cells. Even when there’s enough oxygen, cancer cells often use fermentation to make energy. This unusual behavior, first discovered by Dr. Otto Warburg, is called the Warburg effect. In this state, cancer cells release a lot of lactic acid and succinic acid, which signals they are using fermentation instead of regular cellular respiration.

Why Cancer Cells Use Fermentation

Scientists believe that cancer cells use this ancient fermentation method because their mitochondria, the energy producers, don’t work properly. Without fully functional mitochondria, cancer cells can’t efficiently use oxygen, so they rely on fermentation, which allows them to keep producing energy and growing, even if it’s less efficient.

Fermentation: An Ancient Process

Billions of years ago, before there was oxygen on Earth, early life forms used fermentation to make energy. Once photosynthesis began, oxygen started to fill the atmosphere, and most life forms adapted to use oxygen. However, the fermentation process remained as a backup method. Cancer cells seem to fall back on this ancient pathway to survive and grow when they can’t use oxygen properly.

What This Means for Cancer Treatment

While cancer cells look and behave differently from each other depending on the type, they all seem to rely on fermentation for energy. Understanding this can help scientists develop treatments that target cancer cells’ unique way of creating energy.

In summary, our bodies usually use oxygen to produce energy, but cancer cells often fall back on fermentation. This allows them to grow even when their mitochondria aren’t working properly, making them harder to treat. By studying these differences, scientists hope to find better ways to target cancer cells without harming normal cells.