Brad Reisfeld is a professor of chemical and biological engineering, biomedical engineering, and public health at Colorado State University. Your blood serves numerous roles to maintain your health.

When it comes to maintaining health, it can be helpful to understand an optimal baseline for some matters. Learning a healthy weight range for your height, age, and gender, for instance, can be useful ...

A normal fasting blood sugar level for someone between the ages of 50 and 60 is between 70 and 99 mg/dL. Blood sugar (glucose) targets for older people with diabetes tend to be different than for ...

A vitamin B12 blood test is a reliable way to determine if you have adequate levels of this crucial nutrient. Vitamin B12 is ...

Add Yahoo as a preferred source to see more of our stories on Google. Blood tests are a quick and fairly easy way for medical professionals to detect serious health problems. Having your blood drawn ...

Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

I reassured him and sent him to get another blood specimen drawn without a tourniquet. Why? Because I suspected that the ...

A study finds that a blood test that evaluates levels of three compounds — lipoprotein(a), C-reactive protein (a marker of inflammation), and “bad” LDL cholesterol — can accurately reveal heart ...