Cancerwise

You probably know that smoking cigarettes poses many health risks like cancer, heart disease and lung disease — in addition to being addictive and hard to quit. But another type of tobacco is becoming more popular in the United States: hookah.

Hookahs, also known as shisha, are water pipes with a flexible hose, bowl and mouthpiece used to smoke flavored tobacco mixtures that may contain dried fruit, molasses, honey or other flavorings...

We used to rely on pedometers and simple activity trackers to count our steps and estimate the calories we burned through exercise. But now, that has evolved into high-tech wearable gadgets that are able to measure our heart rhythms, blood pressure and even sleeping patterns. 

But how accurate are these wearable devices, and how can they actually help you monitor or improve your health? Karen Basen-Engquist, Ph.D., director...