The private company that employs the guard said its workers are permitted to open fire only when there's a "threat to life." ...

A new study shows that giving the chemotherapy drug cyclophosphamide after allogeneic hematopoietic cell transplantation, a curative treatment for common types of blood cancer, can make the procedure ...

Your skin is in a constant state of reinvention. Every month, your body sheds and regenerates its entire outer layer—a ...

We often hear fascinating stories about how things originated: the universe, the wheel, even pizza. But when it comes to the ...