Mean arterial pressure (MAP) measures the flow, resistance, and pressure in your arteries during one heartbeat. We’ll go over what’s considered normal, high, and low before going over the ...

Generally high pressure means fair weather, and low pressure means rain. But why? This weather map shows areas of high and low pressure. Meteorologist Kelly Reardon explains how it all works.

CenterPoint Energy rolled out its new outage tracker map on Thursday amid pressure from several state leaders.

A high rip current risk will take effect in San Diego from Saturday night through Christmas Day due to a strong low pressure storm system off the coast of California, which is also bringing big ...

A brutally cold dome of high pressure across eastern Asia has produced what may be the highest barometric pressure readings ever documented on planet Earth — with an important qualifier. At 7 a ...

Changing pressure on your brain from too much fluid -- or too little -- can lead to headaches. We take a look at high- and low-pressure headaches, how to tell the difference, and what you can do ...

The weather forecasters have just given us an impressive display of their skill by predicting the scale of the current high pressure zone over the UK. Overnight, Sunday into Monday, London's ...

High systolic blood pressure readings often indicate a person is at risk for heart disease. During exercise stress testing, a high blood pressure reading may actually indicate good health, new ...