The Czech Republic, which separated from the Slovak Republic 4 years ago, is a relatively small country in the middle of Europe covering 78,864 km 2 with a population of 10,339,000 and a population ...

At Penn Medicine’s clinic where adults receive genetic counseling and testing, about 9% of patients are Black. By contrast, one in four patients at the cardiology and endocrinology clinics located in ...

In 2021, just months after the first COVID vaccines debuted, concern was growing about an exceedingly rare but sometimes deadly outcome of certain shots. Two related vaccines—one from AstraZeneca and ...

Testosterone is often treated as a marker of health and vigor, especially in men. But new genetic evidence suggests it’s not all good: higher lifelong levels of the hormone may also increase the risk ...

In genetics, one harmful variant can be enough to cause disease—but two can make it far more severe. One notable example is KJ, an infant diagnosed with a rare urea cycle disorder with a grim ...

Jenny Graves receives funding from The Australian Research Council. Men tend to lose the Y chromosome from their cells as they age. But because the Y bears few genes other than for male determination, ...