Continual or heightened exposure can increase sensitivity. This often led to heightened ethnic tensions. In the subsequent atmosphere, national tensions were heightened. Attention was heightened by terrorist threats. Mujib's declaration heightened tensions across the country. Cast members also experienced unscrupulous payment practices, which further heightened tensions. This led immediately to heightened tensions in Belfast. It also led to heightened superpower tension. Hyperosmia is a rare condition typified by an abnormally heightened sense of smell. I economic difficulties heightened social unrest in Spain. The navel is one of the many erogenous zones that has heightened sensitivity. Music and movies also heightened his artistic sensitivity. By this time, tensions in ABBA had heightened. It also heightened their ambitions of aggression and military expansion in Asia. Tensions between Britain and France heightened in Africa.