Menstrual blood can range from dark red to brown, black, pink, orange, gray, or even green. Each color can have different causes, from a fast flow to potential infections. It's crucial to ...

Believe it or not, not all blood is red. The life-giving fluid actually comes in five different colors, depending on what animal you're talking about. The different colors reflect different ...

Your blood type and its connection to your heart is more important than you think. Here's what it may mean for your health.