1In her first psychology lecture, Professor Han drew a strange falling curve.
2The curve showed how quickly new information disappears from ordinary human memory.
3Within one day, most students forget more than half of a lesson.
4However, the professor explained that forgetting itself is not the real enemy.
5The true problem is reviewing material at the wrong moment or never.
6Each well-timed review flattens the curve a little and makes the memory stronger.
7She recommended testing yourself actively instead of rereading the same page repeatedly.
8Active recall feels harder, but that difficulty is exactly what builds memory.
9Sleep also matters because the brain sorts new knowledge during the night.
10Students who cram all night are actually fighting against their own biology.
11After the lecture, Minh rebuilt his review plan around these simple principles.
12A month later, he remembered his notes clearly without any painful cramming sessions.