Add Yahoo as a preferred source to see more of our stories on Google. Zyn nicotine pouches are rising in popularity in the US, but the long-term health risks are unclear. Nicotine is highly addictive ...

A pouch-like structure inside the heart's left atrial chamber in some people may explain strokes that otherwise lack an identifiable cause, according to UC Irvine School of Medicine researchers. Dr.

Zyn nicotine pouches are rising in popularity in the US, but the long-term health risks are unclear. Nicotine is highly addictive and can change the brain's chemistry. The stimulant can increase heart ...

Millions of people have a heart rhythm disorder called atrial fibrillation, which causes the heart’s upper chambers or atria to beat chaotically rather than in a smooth, coordinated rhythm. For many, ...

Cardiologists have found a pouchlike structure inside the heart's left atrial chamber that may be a potent source of stroke-causing blood clots. UC Irvine cardiologists have found a pouchlike ...