The neurobiological data from the SpaceLand 0-G tests carried out for the group led by Nobel Prize winner Rita Levi Montalcini on several adults and world-record-breaking kid Kim Marco Viberti (11 year of age: the youngest ever on weightless research flights), strongly suggest that children's brain react much faster and adapt much better to extreme gravitational stresses by generating new synapsis and neurons thanks to a much larger output of hormons such as NGF, BDNF and cortisol.
Further research flight campaigns are envisaged to cast more light on such findings which could greatly help the fight against neurodegenerative pathologies such as the Alzheimer's syndrom and to find solutions to EXTEND HUMAN LONGEVITY !

See page 230 and 288-290 of the European Congress proceedings
https://www.elgra.org/wp-content/uploads/2013/10/ELGRA-Bulletin-26-Bonn-2009.pdf