In a follow up to the HYENA study in 2004–2006 researchers sought to evaluate the association of exposure to aircraft and road traffic noise with the incidence of hypertension and other cardiovascular outcomes.

Their conclusion was:

In conclusion, our cohort study suggests that long-term exposure to aircraft noise, particularly during the night, is associated with incident hypertension and possibly, also, cardiovascular effects.

Dimakopoulou K, Koutentakis K, Papageorgiou I, et al Is aircraft noise exposure associated with cardiovascular disease and hypertension? Results from a cohort study in Athens, Greece Occup Environ Med Published Online First: 13 June 2017. doi: 10.1136/oemed-2016-104180

Nighttime Aircraft noise was found to be a major contributing factor. This may be because people were more likely to be home at night. The study also included roadway noise which has been studied many times.  In the case of roadway noise prevention is easier because the direct path of noise can be blocked by many things such as sound barrier fences. In the case of airport noise the aircraft are higher and harder to block. Thinks like heavy drapes and special windows can help.