Biology is undergoing a revolution that is radically changing our conception of evolution. Our genes don’t control everything: they can be influenced by fascinating mechanisms recently brought to light by international research teams.
From the first row of planted crops, the practice of agriculture rendered man's hunter-gatherer lifestyles obsolete in favor of settled life and stable food supplies. This led to a skyrocketing population and enabled humans to develop skills outside of gathering the food needed to survive.
A fresh perspective on autism research with the developing "Bacterial Theory" of autism. The fastest-growing developmental disorder in the industrialized world, autism has increased an astounding 600 per cent over the last 20 years. Science cannot say why. Some say it's triggered by environmental factors and point to another intriguing statistic: 70 per cent of kids with autism also have severe gastrointestinal symptoms. Could autism actually begin in the gut? The Autism Enigma looks at the progress of an international group of scientists who are studying the gut's amazingly diverse and powerful microbial ecosystem for clues to the baffling disorder.
Lyme disease, a mysterious tick-borne illness, is the fastest spreading vector-borne disease in the United States, and over the past decade, the tick that carries Lyme has been spreading across Canada with alarming speed. Ticked Off: The Mystery of Lyme Disease, is a fascinating and eye-opening documentary that explores a disease that has devastating effects, is often misdiagnosed and mistreated, and continues to be mired in a medical controversy. More than 30,000 cases are reported in the USA every year, but the real number could be as high as 300,000. And despite hard evidence that the Lyme-carrying, deer tick has already established populations across Canada, some people claim that patients here are still being told that they cannot contract Lyme in this country. Doctors agree that if it’s caught early Lyme disease can usually be cured with two to four weeks of antibiotics. There are others who believe that if it’s not caught early, the infection can develop into a debilitating condition they call Chronic Lyme. Yet unlike West Nile, Encephalitis or SARS, where the medical profession and scientists joined forces to find better treatments or a cure, many patients, who claim to have chronic Lyme, say that they are being denied treatment and left to suffer. So why is this happening?
Surgeon Gabriel Weston discovers the surprising truth about why so many people are piling on the pounds, and how to fight the fat epidemic. She discovers the hidden battles of hormones that control people's appetites, and sees the latest surgery that fundamentally changes what a patient wants to eat by altering how their brains work. Gabriel is shocked to find out that when it comes to being overweight, it is not always your fault you are fat.
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!
Periodontal disease affects more people worldwide than any other illness, according to the Guinness World Records. It destroys gum and bone, eventually causing teeth to fall out. Periodontal disease may also be linked to life-threatening illnesses, such as pneumonia and diabetes. One drawback of standard treatments is that it's difficult to restore damaged tissue. But a drug developed in Japan regenerates gum and bone, and saves teeth. We'll also look at ways to maintain good oral hygiene, even when disaster strikes.