Eun Lee, MD Key Takeaways Hyperglycemia (high blood sugar) is an early warning sign of diabetes. It causes symptoms like excessive thirst and hunger, increased urination, and fatigue.Symptoms develop ...

Medically reviewed by Kelly Wood, MD If you feel hungry after eating or have very intense food cravings, it may be a sign ...

Add Yahoo as a preferred source to see more of our stories on Google. Everyone’s blood sugar goes up and down somewhat. But for some people, it can fall too low. Low blood sugar, or hypoglycemia, ...

Blood cancers affect the production and function of blood cells, disrupting how the body fights infection, carries oxygen and controls bleeding. These cancers include leukemia, lymphoma and myeloma, ...

High blood pressure, or hypertension, has been called a ‘silent killer.’ It’s also known as an ‘invisible’ illness. What that all means is high blood pressure doesn’t cause obvious symptoms that ...

Blood cancer affects the body's ability to fight against infection. For rapidly growing forms, it will need to be treated immediately, but slower growing forms are typically monitored, and treatment ...