Natural fertility declines with age, but IVF and donor eggs have changed what's possible. Here's what the science says about pregnancy at different ages.
Tiny red dots on your skin can have several causes, from harmless cherry angiomas to petechiae. Learn what each type looks like and when to see a doctor.
Small period clots are usually normal, but large or frequent ones may signal fibroids, hormonal issues, or other conditions worth discussing with your doctor.
Learn about the three main types of blood cells — red cells, white cells, and platelets — what each one does, and what happens when counts are off.
Skipping a night of sleep affects your brain, mood, immunity, and coordination more than you might expect. Here's what actually happens and how long it takes to recover.