Note that while diastolic blood pressure is diminished and the pulse pressure widens, systolic blood pressure generally remains normal or can even be slightly elevated. This is because sympathetic nervous system and the renin-angiotensin-aldosterone axis of the kidneys compensate for the decreased cardiac output.
Amazon Echo, also known as Alexa, is a voice command device from Amazon.com that is always listening. Its functions include question answering, playing music and controlling smart devices.
The Echo speaker is Amazonâs most interesting experiment yet. I poked fun at the marketing efforts around the Echo and its voice-driven assistant, Alexa. But once I had the speaker in my home, I couldnât deny it was extremely fun to use.