How to Know If You Have a Low Sperm Count
Low sperm count rarely causes noticeable symptoms. Learn what signs to watch for and why a semen analysis is the only reliable way to find out.
Why Is There a Lump on the Side of My Neck?
A neck lump is usually a swollen lymph node, but location and feel matter. Learn what different types of neck lumps mean and when to see a doctor.
How Old Is Too Old to Have Kids? Fertility by Age
Fertility declines with age for both men and women, but the timeline is more nuanced than most people realize. Here's what the science actually says.
How Much Protein Do You Really Need Each Day?
Your daily protein needs depend on more than just body weight. Learn how activity level, age, and pregnancy all affect how much you actually need.
Is There a Test for Dementia or Alzheimer’s?
Diagnosing dementia involves several steps, from cognitive screening and blood tests to brain imaging and spinal fluid analysis. Here's what the process looks like.
What Is Considered a Fever for a 3 Year Old?
Learn what temperature counts as a fever in a 3 year old, when to call the doctor, and how to keep your child comfortable at home.
How Much Water Should You Drink a Day, Really?
Your daily water needs depend on more than thirst. Learn how weight, activity, climate, and age affect how much you should actually be drinking.
Is It Normal to Have More Discharge Before Period?
More discharge before your period is usually normal. Learn what it looks like, why it happens, and when it might signal something worth checking out.
What Is the Worst Sleep Position for Your Health?
Stomach sleeping is generally the hardest on your body, but every position has trade-offs. Here's what to know and how to sleep more comfortably.
How Do I Know If I Have Heart Problems?
Learn the warning signs of heart problems, why symptoms differ by sex, and which numbers and tests matter most for your heart health.