This is the 1295th most frequent German word.
häufiger
"More frequent" or "more often."
In this sentence, 'häufiger' is used in a comparative form indicating an increased frequency of action compared to earlier habit.
Ich gehe häufiger ins Fitnessstudio als früher.
I go to the gym more frequently than before.
Here, 'häufiger' describes the relative frequency of the action within the context of the subject group 'Menschen'.
Menschen, die häufiger lachen, sind oft gesünder.
People who laugh more frequently are often healthier.
In this sentence, 'häufiger' is applied to an environmental condition specifying increased occurrence relative to other times or locations.