The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a ...

Psychological stress can have a big impact on the heart and can cause issues like hypertension, a major risk factor in stroke, heart disease and more.

Studies show vaping raises the number of ACE2 receptors: the doorway COVID uses to attack. That means higher risk and slower ...

The protein reduced the time it takes to clear half of the carbon monoxide in the blood to less than a minute.

The cacao tree (Theobroma cacao) produces fruit which houses the substance that later becomes chocolate or cocoa. Find out why the raw form is so healthy.

Raising your blood sugar levels quickly is important if you're suffering from hypoglycemia. To raise blood sugar, eat a small ...

Dopamine is essential for feeling engaged, capable, and motivated. You can increase dopamine naturally, with supplements, or ...

New research shows pollution particles can stick to red blood cells, traveling through the body—and masks may help stop them ...

Testosterone is the primary androgen — or male hormone — in your body. Low testosterone affects up to 39 percent ...

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

The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.