Dr. jones discovers that the enamel on a new patient's anterior teeth is mottled and pitted, but the patient doesn't have any caries. most likely, the damage is the result of

Habit 1: be proactive  habit 2: begin with the end in mind  habit 3: put first things first  habit 4: think win-win  habit 5: seek first to understand, then to be understood  habit 6: synergize  habit 7: sharpen the saw 

Honestly isn't the place to ask that. search it up on google or something. that's the best answer i can give you.

Frequency of exercise, intensity, time allotted, and type of exercise