What Do Endorphins Do in Your Body and Brain?
Endorphins do more than cause runner's high. Learn how these brain chemicals ease pain, lower stress, support heart health, and strengthen social bonds.
What Is Iodine Deficiency? Symptoms and Health Risks
Iodine deficiency can affect your thyroid, energy, and brain health. Learn the symptoms, who's most at risk, and how to get enough through food.
What Is Erosive Esophagitis? Causes, Symptoms & Treatment
Erosive esophagitis happens when stomach acid repeatedly damages the esophageal lining. Learn what causes it, how it's treated, and when to see a doctor.
What Is IgA Deficiency? Symptoms, Causes & Treatment
IgA deficiency is the most common immune deficiency, yet many people never know they have it. Learn what it means for your health and how it's managed.
What Is Escitalopram Oxalate and How Does It Work?
Learn what escitalopram oxalate is, how it affects serotonin in the brain, what conditions it treats, and what to expect when taking it.
What Is MLT Certification and What Does It Prove?
MLT certification shows employers you can perform clinical lab tests independently. Here's what it takes to earn it and where it can take your career.
How Was COVID Created? Natural Spillover vs. Lab Leak
A balanced look at the evidence behind COVID's origins, from animal spillover to lab leak theories, and why scientists still disagree.
What Causes High LDL Cholesterol?
High LDL cholesterol can stem from diet, genetics, thyroid issues, menopause, liver health, and certain medications. Here's what's worth knowing.
How Common Is Pneumonia? Rates, Risks & Causes
Pneumonia affects millions each year. Learn who gets it most, what causes it, and how vaccines have shifted infection rates over time.
How Does UroLift Work for an Enlarged Prostate?
UroLift lifts and holds enlarged prostate tissue out of the way to improve urine flow, without cutting or removing tissue, preserving sexual function.
How to Treat Adenovirus: Fever, Pink Eye, and More
Adenovirus treatment focuses on relieving symptoms at home. Learn how to manage fever, pink eye, and stomach issues, and when to see a doctor.
What Causes Head Tremors: Conditions and Triggers
Head tremors can stem from essential tremor, cervical dystonia, medications, or thyroid issues. Learn what's behind them and how they're treated.
My Vagina Is Sore: Causes, Relief, and Red Flags
Vaginal soreness can stem from infections, dryness, irritants, or chronic conditions. Learn what might be causing yours and when to see a doctor.
Is Musely Worth It? Costs, Results & Side Effects
Musely offers prescription hydroquinone for dark spots, but is it worth the cost? Here's an honest look at results, side effects, and who it suits best.
Is Gingivitis Gum Disease? Symptoms, Causes & Treatment
Gingivitis is the earliest stage of gum disease—and the good news is it's reversible. Learn the signs, causes, and how to treat it before it gets worse.
What Fruits Have Nicotine and How Much?
Some fruits and vegetables naturally contain small amounts of nicotine. Learn which foods have the most, how it compares to tobacco, and what it means for your health.
What Are Some Moods? Positive, Negative, and More
Moods shape how we experience each day. Learn the difference between moods and emotions, common positive and negative moods, and what influences how you feel.
Is PCP an Opioid? Drug Class and Key Differences
PCP is a dissociative anesthetic, not an opioid. Learn how these two drug classes differ in effects, risks, and why naloxone won't help in a PCP emergency.
What Is a Splash Pregnancy and How Likely Is It?
A splash pregnancy from external sperm contact is theoretically possible but extremely unlikely. Here's what the science actually says about the risk.
What Is in Claritin: Active and Inactive Ingredients
Claritin contains loratadine as its active ingredient, but the inactive ingredients vary across tablets, RediTabs, syrups, and Claritin-D. Here's what's in each.