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Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. Sarthak Sinha takes us past the epidermis and into the dermis to investigate this regenerative response.
People ask Google everything under the sun. One of the most commonly searched questions in the world is “How much water should I drink a day?” SciShow has the answer!
Diseases that were largely eradicated in the United States a generation ago—whooping cough, measles, mumps—are returning, in part because nervous parents are skipping their children’s shots. NOVA's "Vaccines—Calling the Shots" takes viewers around the world to track epidemics, explore the science behind vaccinations, hear from parents wrestling with vaccine-related questions, and shed light on the risks of opting out.
By 2050 the world’s population is estimated to reach over 9 billion, 30% larger than it currently is. If we continue to farm and eat the way we do today, we’d potentially need an additional landmass the size of Europe to produce enough food to meet the growing demand. So what does the future of food look like and how will we grow enough food for us all to eat in the years to come? In Tonight’s programme we visit some of the urban ventures that are maximising the use of public space to grow fruit and vegetables and teach the next generation how to farm. We speak to the owner of an indoor miniature farm housed inside a small shop about the new aquaponic technology he uses, and we go 100 feet below ground to see how one entrepreneur is growing high-value salad crops in old WWII bomb shelters, four storeys beneath the London Underground!
4/4 • The Food We Eat • 2014 • Health
Thought of as a modern phenomenon, it actually started over 400 years ago with a spate of botched nose jobs. Since then, surgeons have been entranced with the idea that not only could they fix the body, but could even fix our sense of self-esteem. Presenter Michael Mosley undergoes both 16th-century bondage and 21st-century botox in his journey of discovery.
4 • Blood and Guts: A History of Surgery • 2009 • Health
In the US, 80% of girls have been on a diet by the time they're 10 years old. In this honest, raw talk, neuroscientist Sandra Aamodt uses her personal story to frame an important lesson about how our brains manage our bodies, as she explores the science behind why dieting not only doesn't work, but is likely to do more harm than good. She suggests ideas for how to live a less diet-obsessed life, intuitively.