Pulse oximetry is a test used to measure the oxygen level (oxygen saturation) of the blood. It is an easy, painless measure of how well oxygen is being sent to parts of your body furthest from your heart, such as the arms and legs.
A pulse oximeter is a small, lightweight device used to monitor the amount of oxygen carried in the body. This non-invasive tool attaches painlessly to your fingertip, sending two wavelengths of light through the finger to measure your pulse rate and how much oxygen is in your system.
Unless you're Jack Bauer, of course. Which you aren't. He's fictional - and unless artificial intelligence has come a long way in a short space of time, you're very much real.
If you consider yourself a professional procrastinator, 24 hours is barely enough time to read your emails, let alone respond. Especially if you sleep the recommended ten hours a night.
But it's all we give you to capitalise on our great deals.
And you've just wasted five minutes reading this and wondering how to make the simple act of email reading last a full work day.