Stanco insegnante afro-americano con mal di testa vicino cancelleria e globo in classe - Foto e immagini stock

Frustrated woman. Lost opportunities. Hard tasks. Feeling headache. Tired lady in formal clothes holding head hands with flipchart boards on background.

Young asian student reading a book under mental pressure

Young depressed and stressed student girl working with laptop and book pile overwhelmed and frustrated preparing exam feeling lazy and tired in education problem and academic frustration

Tired african american pupil looking at camera near laptop and supplies in classroom

Tired businessman with closed eyes near laptop and notebook at table in office

Tired businesswoman looking at notebook on office table

Dreamy young woman near clipboard and pen on wooden desk

Exhausted latin businesswoman writing in notebook while sitting at desk and holding hand near head

Overworked young woman sitting at workplace in office

Exhausted african american schoolchild in eyeglasses looking at camera near laptop and stationery, banner