Is a Cuttlefish a Mollusk? Classification Facts
Cuttlefish are indeed mollusks, though they look nothing like clams or snails. Here's what they share with their shelled relatives and what sets them apart.
Is Polymyalgia Rheumatica an Autoimmune Disease?
PMR causes significant inflammation but may not be a true autoimmune disease. Here's what we know about its causes, diagnosis, and treatment.
Is Philosophy a Behavioral Science? Not Exactly
Philosophy overlaps with behavioral science in interesting ways, but its reliance on reasoning over empirical data keeps it in a category of its own.
Is Food Made of Cells? What the Biology Shows
Most food is made of cells — plant, animal, or microbial. Here's what biology tells us about what we're actually eating.
How to Reverse Insulin Resistance: Diet, Exercise & More
Insulin resistance can often be reversed through lifestyle changes. Learn which diet, exercise, sleep, and other habits have the strongest evidence behind them.
How Much Sleep Is Recommended at Every Age?
Sleep needs vary by age, lifestyle, and health. Here's what the science says about how much sleep you actually need and how to tell if you're getting enough.
How to Stimulate Hair Growth: Treatments That Work
From minoxidil to rosemary oil, here's what the evidence actually says about treatments that can help stimulate hair growth.
Is Oatmeal Better Than Rice? What the Evidence Shows
Oatmeal and rice each have real nutritional strengths. Here's how they compare on fiber, blood sugar, protein, and arsenic exposure.
Why Save Cord Blood? Stem Cells That Treat Disease
Cord blood contains stem cells that treat blood disorders and immune diseases. Learn who benefits most and whether public or private banking makes sense for you.
Is Lice Shampoo Bad for Your Hair? What to Know
Lice shampoo can dry out hair and irritate the scalp, especially for color-treated hair. Here's how to treat lice while keeping your hair healthy.