The new Apple Watch is making waves for being able to record an electrocardiogram (ECG) and share it. An ECG can tell you what's going on with your heart.
Over the past 16 years, GPs have got much better at diagnosing and treating people with atrial fibrillation. And it's saving lives.
In fact, even a happy heart can break.
The risk of developing an irregular heartbeat was 41% higher among those who were grieving a partner's loss than among those who hadn't experienced such loss. And this could last up to a year.