"REGENERATION"

Regeneration for health, Force, and vitality comes naturally.  However,
if you are hungry or thirsty, regeneration may take a lot longer.  When
identifying an item, it may show that health, Force, or vitality regen
will improve when worn.  The numbers shown are modifiers to the amount
gained per tick (minute).  It does not represent the amount per healing
interval (currently 15 seconds).  There is no limit on the amount of
regeneration of any of the three.

Certain rooms are Regeneration Rooms, and help you regenerate faster.
Regen rooms will also help you recover from skill usage faster.

See also: ACCELERATE HEALING AGE BANDAGE CONDUIT MEDITATION RECUPERATE MITIGATE REJUVENATE BANDAGE