By providing bio-information and/or environment information between a pair
of users, it becomes possible for the users to understand the situation
or the feeling of each other more deeply and earlier. A communication
system for exchanging the situations and the feelings of both users is
provided without performing optional communication operations, such as a
telephone call and an e-mail. The condition or the situation on the
transmitter side is to be judged and to be notified to the receiver side
by inputting bio-information such as breathing, pulse-beats and
heartbeats or environment information such as weather, date and hour,
ambient temperature, or alternatively, by comparing, synchronizing and/or
relating the bio-information and/or the environment information at
present with respect to the bio-information and/or the environment
information in the past. With respect to the situation of the receiver
side, it is also notified similarly to the transmitter side.