How difficult is Everest Base Camp Trek?

The Everest Base Camp (EBC) trek is considered strenuous but achievable for most people with good physical and mental fitness, though it is not technically difficult. The difficulty comes from the physical demands of walking 5-7 hours daily for several days, the high altitude, and the potential for unpredictable weather. Proper training, acclimatization, and a guide are crucial for a safe and successful trek.