Write an English composition "Medicine" for senior two students with the theme of future life.

In the future, human life will be very different from today. First of all, with the development of medicine,

On average, a person will live to 120 years old. Second, because of the discovery of new energy,

Environmental pollution will be controlled. Third, people's daily life will also undergo great changes. For example,

Robots will help you do all the housework; Your chair will change color according to what you wear; you

You can also put your mobile phone on your wrist and see the caller when you speak; You can even

The new elevator goes into space for a holiday.

The answer is not unique.