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Angela Rippon and Dr Chris van Tulleken travel the world in search of the latest science that could help us all stay young and healthy for longer. This episode explores what can give brains a boost. In America, Angela tries out a new treatment that's proven to help memory and concentration. In Japan, a remarkable 100-year-old reveals the colourful foods that keep minds more active. Plus Chris discovers the best exercise we can do for our brains. At...

This provocative episode of NOVA scienceNOW examines whether we can slow down the aging process, looks at the latest on human hibernation, and checks in with bioengineers and a computer scientist inventing ways to "keep us going" forever. Host Neil deGrasse Tyson also takes a lighthearted look at whether the tricks that have kept a 1966 Volvo running for 2.7 million miles can also help the human body go the extra mile.

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...