Heartbeat

heartbeat--The interaction between the server and a character, the
heartbeat is 
the timing mechanism used by the MUD to determine regeneration, weather,
when 
monsters move, etc. When the MUD indicates "you have no heartbeat!" try
using 
the defibrillate command.  Without a heartbeat, any task involving time
(combat,
spellcasting, skill use, etc.) can not happen.
See also: HELP DEFIBRILLATE