The best way to measure your feet for running shoes is by heading to the shoe store and getting fitted by an expert. But if you need to troubleshoot sizing on your own, all you need is a ruler, paper, ...

There are many tools available to check your heart rate, but if you don’t have one, you can still obtain an accurate reading using your pulse and counting in your head or using a stopwatch or timer.

In critically ill neonates, peripheral perfusion and oxygenation assessment may provide indirect information on the circulatory failure of vital organs during circulatory shock. The development of ...