Question

why and how can the biological aging stops in process of twin paradox
I mean I can understand that all time linked devices will slow down due the time frame but why does biological aging stops????​

Answer 1

Answer:

The so-called "twin paradox" is easily resolved by noting that there is a physically meaningful disinction between the experiences of the two twins during the trip. ... As it turns out, the result is that the traveling twin is younger upon return than the Earth-bound twin