Capsaicin irritates your gut lining and speeds up digestion. Here's why spicy food causes diarrhea and some practical ways to enjoy it with fewer side effects.
Symmetry and asymmetry shape everything from human faces to molecules. Learn what they mean, why they matter in biology, and when asymmetry signals a health concern.
Truncus arteriosus is a rare heart defect present at birth. Learn how it forms, what causes it, and what surgery and long-term care typically look like.