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Directed evolution: Tailoring proteins, enzymes, and life

How scientists harness evolution to create custom molecules.

What chemicals make you happy?

Discover the science behind the happy chemicals in your brain.

What is oxytocin: unraveling the 'love hormone'

Discover how the enigmatic oxytocin, known as the love hormone, shapes human bonds.

What are endorphins: nature's happy chemicals

Discover the extraordinary world of endorphins and how they bring joy and vitality to your daily life.

Why serotonin makes you happy (or very, very sad)

Serotonin is a neurotransmitter in the brain that regulates mood and behavior and is associated with happiness and contentment.

Why dopamine makes you happy

Explore the power of dopamine, the "happy" chemical in the brain, and discover how it impacts our mood, motivation, and behavior.

Venom versus poison: what is the difference?

Knowing the difference between the two may be a matter of life and death!

What are hormones -- everything you need to know

The term hormone comes from the ancient-Greek word for "impetus," showing the power they have to activate or inhibit the cells and organs in our body.

What is vitamin K?

Vitamin K plays a key role in our blood’s ability to form clots. It’s one of the less glamorous vitamins, more rarely discussed than its peers and, although it’s usually referred to as a single substance, it comes in two natural varieties — K1 and K2 — and one synthetic one, K3. People typically cover […]

What is DNA: the blueprint of life

Everything you need to know about the hereditary material in humans and virtually all other organisms.

What is cholesterol?

Cholesterol is vital for the body's well-being. But too much of it can also kill.

What is cellular respiration: from food to ATP

Cellular respiration allows cells to harvest ATP from glucose. It has three steps called glycolysis, the Krebs cycle, and the electron transport chain.

Zooming in on the cell-- what makes animals and plants different?

There are a few key differences!

What's the difference between diffusion and osmosis

Both are passive transport processes that are essential to both living and non-living systems.

What is THC: the main psychoactive ingredient in marijuana

THC has beneficial health outcomes but also carries risks. Let's see what the science says about it.