During 100 days of war, a Gaza doctor pushes through horror and loss in his struggle to save lives

For a few hours every day or night, Dr. Suhaib Alhamss tries to sleep on a thin mattress in an operating room. He swings in and out of half-consciousness, both too tired to open his eyes and too tense to let go. Thunderous shellfire often rattles the windows of the hospital he directs in the southern Gaza Strip.