3 Injections for Knee Pain: Cortisone, Gel, and PRP
Cortisone, gel, and PRP injections can all help with knee pain, but they work differently. Here's what each one does and how to choose the right option.
What to Do If Your Eye Is Swollen: Home Remedies
A swollen eye isn't always treated the same way. Learn when to use cold vs. warm compresses and when to see a doctor.
How Much Blood Do You Lose on Your Period?
Most people overestimate period blood loss. Learn what's actually normal, how to measure your flow, and when heavy periods might affect your health.
What Is the End of the Bone Called? Epiphysis
The end of a bone is called the epiphysis. Learn what's inside it, how it connects to cartilage and growth plates, and why bone ends are prone to injury.
How Long Does It Take for Blue Balls to Go Away?
Blue balls usually resolve within minutes to hours. Learn what causes the discomfort, what to expect, and when pain might signal something more serious.
Why Do I Wake Up With Crusty Eyes: Causes & Fixes
Morning eye crust is usually harmless, but it can point to dry eyes, blocked glands, or infection. Learn what's normal and when to see a doctor.
What to Say—and Not Say—to Someone Who Is Suicidal
Practical, research-backed guidance on how to talk with someone who may be suicidal—including what to say, what to avoid, and how to help them find a next step.
How Old Can a Woman Have a Baby: Fertility by Age
Fertility declines gradually with age, but how late can pregnancy actually happen? Here's what the science says about natural conception, IVF, and the real risks involved.
How to Get Rid of a Cyst on Your Face Without Popping It
Facial cysts rarely go away on their own, but popping isn't the answer. Learn what actually works, from home care to dermatologist treatments.
How Do I Know If I’m Dehydrated? Signs to Check
Learn how to spot dehydration early, from mild thirst and dark urine to serious warning signs, plus how needs vary by age.
How Old Do You Have to Be to Take Creatine?
Most experts recommend waiting until 18 to take creatine, but the research is more nuanced. Here's what the science says about teens and creatine use.
Why Am I So Tired After 8 Hours of Sleep?
Sleeping 8 hours but still exhausted? Several factors like sleep quality, timing, and hidden conditions may explain why you're not waking up refreshed.
Why Dogs Drink a Lot of Water and When to See a Vet
Increased thirst in dogs can be normal or a sign of conditions like diabetes or kidney disease. Learn what to watch for and when to call your vet.
What Is the Life Expectancy of a 75-Year-Old Man?
A 75-year-old man can expect to live well into his 80s, but health, activity level, and zip code all shift that number significantly.
How Many People Die From Gun Violence Each Year?
Around 45,000 Americans die from gun violence each year. Here's what the data reveals about who's affected, where, and how trends have shifted over time.
How Much Water Should a 4 Year Old Drink Per Day?
4-year-olds need about 5 cups of fluids daily, but milk and food count too. Learn how to keep your child hydrated without overdoing it.
How to Stop Grinding Your Teeth at Night for Good
Teeth grinding at night can damage your jaw and sleep. Here's what causes it and the treatments that actually help, from night guards to Botox.
How to Measure Body Fat Percentage at Home: 4 Methods
Four practical ways to measure body fat at home, from smart scales to calipers, plus tips on getting consistent results over time.
What Should My Heart Rate Be While Exercising?
Learn how to find your ideal exercise heart rate, what different intensity zones mean for your workout, and how to track your effort without a monitor.
How Long Does Marijuana Stay in Your Body?
THC can stay in your system for days or months depending on how often you use it and what type of test you take. Here's what the science actually shows.