correct and bad sitting position at desk

activity adjustable age aged arm armrests back bad balding being benefit business busy careless caster casual chair coach colleagues computer concrete corporate coworker coworkers coworking crooked design desk desktop dress duty electric employee environment ergonomic eyeglasses factors focused furniture headmen health healthy heels height high human hump humping hunch hunching inattentive incorrect industrial keyboard laptop lifestyle looking male men middle mobile mobility model norm notebook observing office performance position posture productivity profession professional profile prop proper real rest rotary safety seated sitter space standard straight strain support swivel system table team tension therapeutic thoughtful tilt tired together trainer two typing up wall watching well wheelchair wheels workers working workstation writing wrong young