HealthDo you run with bent arms? Turns out it doesn't make much difference A study found that people don’t use any more energy by running with their arms held straight, even though they found it was a more awkward running style News
HealthMen who have children later in life may prime their kids for longevity Older dads may change the chromosomes in their sperm so that their children will be able to live longer lives – a phenomenon similar to Lamarckian evolution News