(Reuters Health) - A warning for people who use insulin pens: Not shaking your NPH insulin pen before injecting can result in wide variations in your insulin level and blood sugar control, researchers ...

Katy Folven never leaves home without her insulin pen, but the busy Boston social worker sometimes forgets to track her daily doses. When that happens, she must prick one of her already-calloused ...

Insulin is a hormone that helps your body move sugar from the blood into your tissues. When you have diabetes, your body may not make or use insulin the right way, so you may need to take insulin ...