Harvard Health Content API

Scientists have discovered new ways to measure how rapidly the body is aging. For example, it’s possible to determine body age by measuring the length of telomeres—the ends of the chromosomes inside of every cell. And a 2024 study found that levels of certain proteins in the blood correspond to body age. It’s hoped that this information can help lead to anti-aging treatments and also help motivate people to make lifestyle changes (if necessary) to slow the process.

People with atrial fibrillation (afib) who own a smart watch capable of detecting the heart rhythm disorder may use it to track the frequency and duration of their bouts of afib. The information might help inform their physician’s advice. However, afib notifications may cause people to become anxious and preoccupied with tracking their condition. For them, disabling the notifications may be a good idea.

People can learn how to give chest compressions—a key aspect of cardiopulmonary resuscitation, or CPR—by watching a 90-second online video. CPR keeps blood flowing to the brain and vital organs during a cardiac arrest. There are various ways to practice chest compressions on a mannequin, including at an in-person class or at one of 30 kiosks (including six at major airports) located nationwide.

Snow shoveling can be risky for people with heart disease because (1) the activity requires a lot of physical effort, and (2) cold temperatures constrict arteries. Both factors can raise the risk of a heart attack in people with narrowed heart arteries.

Most hospitals have chaplains who can provide emotional and spiritual support to patients and their families during challenging medical situations, such as impending heart surgery, a worsening bout of heart failure, or cardiac arrest. Spiritual care, which has been linked to improved health outcomes, encompasses but does not necessarily include formal religious practices. It aims to help people explore sources of comfort and hope while coping with the challenge of a diagnosis.