This test uses saliva and connects to your phone to deliver quick insights into your stress hormones -- no needles needed.

Understanding your heart rate is crucial for more than just reaching optimal fitness–it can also help to reduce injury and stress, and even predict illness ...

In TODAY.com's Expert Tip of the Day, a cardiologist explains why nighttime is important for cardiovascular health.

Identical twins Mairéad Lyons and Thérèse Walsh have always had a very close bond but it reached a new level when both of ...

Heart attacks can happen to anyone, anywhere with barely any warning. While many people survive their attacks, the odds of ...

New research shows that building heart-healthy habits during young adulthood (and earlier) may determine your risk of heart ...

Julia Wandelt, 24, from Poland, who has falsely claimed to be Madeleine McCann, is on trial along with Karen Spragg, 61, from ...

Some say, “go with your gut”, others say, “measure 9 times, cut once”. Either sounds familiar? If so, you might be a very ...

Discover essential questions to ask your vet that can enhance your pet's health and wellbeing. Get informed and advocate for ...

New research shows how the signal from a household WiFi device can be used to monitor heart rate with state-of-the-art ...

C hecking your hormone levels usually means scheduling a doctor's visit, getting blood drawn and waiting days for results.