Of all the wonders of the human body, there's one more mysterious than any other. Blood: five precious litres that keep us alive. Yet how much do we really know about this sticky red substance and its mysterious, life-giving force?
As the narrative goes, fat is bad. Well, it's actually more nuanced than that. The type of fat you eat is more impactful on your health than the quantity. George Zaidan examines triglycerides, the varied molecules that make up fat, and how to identify which types of fat you are consuming.
Is there any way to slow or even prevent the ravages of time? Veteran presenter Johnny Ball looks back over the 45 years that Horizon, and he, have been on air to find out what science has learned about how and why we grow old. Charting developments from macabre early claims of rejuvenation to the latest cutting-edge breakthroughs, Johnny discovers the sense of a personal mission that drives many scientists and asks whether we are really any closer to achieving the dream of immortality.
In the United States, it’s estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn’t just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep.
Benjamin Woolley presents the gripping story of Nicholas Culpeper, the 17th century radical pharmacist who took on the establishment in order to bring medicine to the masses. Culpeper lived during one of the most tumultuous periods in British history. When the country was ravaged by famine and civil war, he took part in the revolution that culminated in the execution of King Charles I. But it is Culpeper's achievements in health care that made him famous. By practicing (often illegally) as a herbalist and publishing the first English-language texts explaining how to treat common ailments, he helped to break the monopoly of a medical establishment that had abandoned the poor and needy. His book The English Physician became the most successful non-religious English book of all time, remaining in print continuously for more than 350 years.
2007 • Health
Maitre d' and Extraordinary Places to Eat host Fred Sirieix and GP Zoe Williams open a restaurant with a difference, welcoming 20 unsuspecting diners for a slap-up meal. It all sounds normal enough, but this restaurant has something unexpected back of house - a functioning gym, where a group of fitness fanatics are poised on exercise bikes, treadmills and rowing machines, ready to burn off every single calorie ordered and consumed by the diners.