A new study shows that exercise can help you keep your words. According to Katrien Segaert, a researcher from the University of Birmingham who led the study, said "Older adults usually have a much larger vocabulary than young adults. Instead, "tip-of-the-tongue states occur when the meaning of a word is available in our memory, but the sound form of the word can temporarily not be accessed." The study showed that aerobic exercise can help decrease these moments.