All this wet air is pulled in by a high pressure area over the Indian Ocean and a low pressure area to the south.

VOA: special.2010.05.25

Many migraine sufferers say hot weather and low barometric pressure can act as triggers.

VOA: special.2009.03.18

NOAA scientists say Katrina's air pressure was very low.

VOA: special.2010.08.24

The second is the low barometric air pressure.

VOA: special.2010.06.30

"They are not getting heart disease because of low blood pressure, they are not getting cancer because they have low risk factors for cancer,including smoking."

VOA: standard.2010.04.08

Low levels of vitamin D are even associated with high blood pressure.

VOA: standard.2010.05.28