Cryopods

Cryo-Pods
A technology invented in the mid 23 century. It can perfectly suspend aging and put humans into hybernation for long voyages.

Required Stasis.
The colonists were all equipped with a neural plug located at the pressure point located behind the left ear. This was a common enhancement in the Federation at the time.

With the way cryo-stasis works, it preserves the body perfectly, but keeps the mind active. Using the neural plug, the mind is uploaded into the ship's main computer and is rotated out on cycles of games and other activities to keep the mind active and to prevent them from becoming stagnant, and preventing insanity.

Failures of the system in the past have resulted in memory loss.