Read and match the heading to the short part.

You simply type a short message and send it, being careful, of course, to send it to another mobile and not to a home phone. Mobile phones used to be big and heavy. Now, they're small and light. The chances are that they will become even smaller and lighter in the future.

• THEY MIGHT BE DIFFERENT
• PROGRESS IN MESSAGING
• PLAY IT SAFE
• CHANGE THE TECHNOLOGY
• SWITCH FINGERS
• FACE THE CONSEQUENCES OF GERMS
• IT WAS IMPOSSIBLE IN THE PAST
• SAVE YOUR SIGHT
• LEADING TO BACK PROBLEMS
• MODERN GADGETS' SLAVES