Abstract: The present invention regards the composition having a blood pressure reducing and/or elevation suppressing effect comprising a mannose-based oligosaccharide mass comprising 1 to 10 molecules of monosaccharides linked together, said molecules mainly comprising mannose. It is the object of the present invention to provide an economical and simple food and drink which has an excellent blood pressure reducing and/or elevation suppressing effect without changing ordinary eating habits much, and a composition ingestible with a food and drink which effectively uses waste resources such as coffee extraction residues.

Abstract: A mail notification system for use with structures and residences is disclosed. The mail notification system comprises an activator attachment that is attached to an inner surface of a mailbox. The activator attachment includes an activator that is kept in a retracted position by a flange attached to a mailbox door when the mailbox door is shut. Once the mailbox door is opened, the activator opens to an extended position, thereby activating a radio wave transmitter in the activator attachment. The radio wave transmitter emits radio waves that are picked up by a radio wave receiver that is incorporated into a face plate unit that is preferably located within a residence of an individual. The radio wave receiver then activates a speaker to emit sounds and an attached display to display words that indicate the mailbox door has been opened, suggesting mail has been deposited in the mailbox.