Can humans ever achieve immortality? Thomas explains why this may be impossible, referring to a small species of non-ageing jellyfish.
Emma Briggs investigates whether a transfusion can turn back the clock
For years we have tried to reduce the effects of ageing. Could molecules produced by our commensal bacteria be a new line of therapeutics to combat these effects?
Want to stick around long enough to see your great-great-great grandkids grow up? The solution may lie in your DNA.
How do you know how old a rock is?