A man with confusion and signs of a brain injury actually had an extremely rare condition diagnosed in just 50 people over the past century. The unidentified 76-year-old was rushed to his local ...

Years after the first reports of Havana Syndrome emerged, U.S. officials have obtained and are testing a device​ that could ...

The Biden administration purchased suspected "Havana Syndrome" weapon with Russian components. House Republicans demand ...

The device was purchased by Homeland Security officials under the Biden administration and cost millions, two sources said.

Fatigue can stem from a variety of illnesses and life stressors, but when that exhaustion lasts for months — often following an infection — it may indicate a condition called chronic fatigue syndrome.

When the flu strikes, it can feel relentless: rising fever, hacking cough, stuffy nose and sore throat. For many people, relief can come in the form of Tamiflu, a prescription antiviral medication ...

Sick sinus syndrome (SSS) is a heart rhythm problem that affects your heart's natural pacemaker. You may develop symptoms of SSS like dizziness, fainting, and fatigue. Treatment may include lifestyle ...

Marcus Mariota didn't finish the Commanders' loss to the Philadelphia Eagles after injuring his hand. Scott Taetsch / Getty Images Already down one quarterback, the Washington Commanders might lose ...

President Donald Trump slathered a fresh coat of makeup on his right hand for another round of peace talks with Ukraine on Sunday—but it was his other hand that drew attention. Trump, 79, welcomed ...

For the second year in a row, the US has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels. Often called the “100-day cough,” whooping cough or pertussis ...