ScienceInsights

Tartar can't actually be removed at home, but you can slow its buildup. Learn what works, what doesn't, and when to see a dentist.

Yes, you can get braces more than once. Learn why teeth shift back, what repeat treatment involves, and how to avoid needing braces again.

Zoloft tends to feel more energizing than sedating, especially early on. Here's what that activation feels like and how to manage it.

Crab salad can be safe during pregnancy, but it depends on the ingredients and how it was prepared. Here's what to watch out for.

Gardein offers solid protein and useful micronutrients, but sodium and saturated fat vary widely by product. Here's what the nutrition data actually shows.

Sinus drainage can leave your throat raw and irritated. Here's why it happens, what makes it worse at night, and how to find some relief.

Duck fat is high in unsaturated fats and has a better nutritional profile than you might expect, though it's still worth using in moderation.

Blocked ears? Learn safe, proven techniques to relieve ear pressure, including what to do on flights and when to see a doctor.

Dill pickles are nearly carb-free, but sweet pickles are a different story. Here's what to know about pickle carbs, sodium, and eating them on a low-carb diet.

That painful crack at the corner of your mouth is likely angular cheilitis. Learn what causes it, how to treat it, and how to keep it from returning.