Actually, if you type with only two fingers you will be moving your forearm a lot, which is good. Edit: I want to elaborate on this. My brother, who's 18 years

Actually, if you type with only two fingers you will be moving your forearm a lot, which is good. Edit: I want to elaborate on this. My brother, who's 18 years old, has never learnt how to type properly, but he is, of coures, very fast, using only two fingers. He types with great energy, but less wrist strain. The stronger arm and shoulder muscles can easily take care of the job, it is the wrist muscles that are weak.