Aerobic fitness may help you avoid lapses in your vocabulary.
Call them tip-of-the-tongue moments: those times we can’t quite call up the name or word that we know we know. These frustrating lapses are thought to be caused by a brief disruption in the brain’s ability to access a word’s sounds. We haven’t forgotten the word, and we know its meaning, but its formulation dances teasingly just beyond our grasp. Though these mental glitches are common throughout life, they become more frequent with age. Whether this is an inevitable part of growing older or somehow lifestyle-dependent is unknown. But because evidence already shows that physically fit older people have reduced risks for a variety of cognitive deficits, researchers recently looked into the relationship between aerobic fitness and word recall.
To no one’s surprise, the young subjects experienced far fewer tip-of-the-tongue failures than the seniors, even though they had smaller vocabularies over all, according to other tests. Within the older group, the inability to identify and say the right words was strongly linked to fitness. The more fit someone was, the less likely he or she was to go through a “what’s that word again?” moment of mental choking.