Sitting Quietly

Reading

Writing

Talking

Riding Bicycle (moderately)

Physical Exercise without walking (e.g., washing dishes, carpentry)

Riding Bicycle (briskly)

Swimming

Walking

Activities are listed in ascending order of their effect on level of awareness, per unit of time in which the activity is carried out. Level of awareness is defined as the degree to which thought is stopped, and is distinguished from level of attention, the degree to which the contents of one's awareness is affected by events in the external world.