In recent years there has been much talk about the possibility of establishing a permanent space colony somewhere in the solar system. If that happens it's plausible that within the next century somebody is going to live their entire life in space.
Currently our knowledge of the health effects of living in space are somewhat limited in various respects, in particular I don't think we know exactly what the effect is on people outside of a narrow age range. But how narrow exactly is that range?
Who was the youngest and oldest persons to fly in space? And what were their age at the time?