Do You Really Have Two Brains?
Adults BiologyAre you a left-brained person or a right-brained person? Spoiler: You're neither. Each of us uses both sides of our brain for most of what we do. But still, there are a number of brain functions that do show lateralization, where they are localized to one side or another. Why is this? And how does it influence our definition of consciousness? People with "split brains" can help us figure it out.
DNA Doesn't Look Like What You Think!
Adults BiologyBiology textbooks are full of drawings of DNA, but none of those show what DNA actually looks like. Sure, they're good models for understanding how DNA works, but inside of real cells, it's a whole lot more interesting. Learn why we can't look directly at DNA, and find out how DNA is actually packed inside cells.
Revolutionizing Heart Surgery With Virtual Reality
Adults BiologyHave you ever wondered what it would be like to take a ride through the human body on the Magic School Bus? Well, a new bit of virtual reality technology is taking that concept and applying it to medical training. Doctors can now teleport inside the human heart and practice surgery over and over again, and this training could revolutionize the future of health care.
Oxygen's surprisingly complex journey through your body - Enda Butler
Adults BiologyOxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach the cells deep inside your body? Enda Butler tracks the surprisingly complex journey of oxygen through your body.
Why do we itch? - Emma Bryce
Adults BiologyThe average person experiences dozens of individual itches each day. We've all experienced the annoyance of an inconvenient itch - but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to the itch, or is it simply there to annoy us? Emma Bryce digs deep into the skin to find out.
The Immune System Explained I - Bacteria Infection
Adults BiologyEvery second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival.