One of the most unexpected and interesting announcements at the show was Jitterbug, a new MVNO from a little-known company called GreatCall. The target market for Jitterbug is older users, especially ...

Hannah Adamson makes Dorothy a deer caught in the headlights. She’s always wide-eyed and disbelieving, until she takes charge ...

This smartphone for older users sports a huge 5.5-inch screen. Its unique software offers simple menus with large text, plus GreatCall's extensive suite of services for older users. It also offers ...

Mast cell activation syndrome is a condition that causes mast cells to release an inappropriate amount of chemicals into your body. This causes allergy symptoms and a wide range of other symptoms.

Lymphocyte activation occurs when lymphocytes (B cells or T cells) are triggered through antigen-specific receptors on their cell surface. This causes the cells to proliferate and differentiate into ...