Magnified images show the increase in blood stem cell production that occurred when a second wave of inflammatory signaling was delayed in zebrafish embryos. The blood stem cells are colored green.

Thin blood means having too few platelets, a part of the blood that helps clots form. Thin blood typically does not cause symptoms but can lead to excessive bleeding and bruising. Blood contains four ...

Any medication can cause side effects, and medications for high blood pressure (hypertension) are no exception. While many people taking high blood pressure medication have only mild or no side ...