ScienceInsights

Salt and sodium aren't the same thing, and knowing the difference can help you make more sense of food labels and manage your intake more accurately.

Learn what side effects Claritin can cause in adults and children, how it compares to older antihistamines, and which drug interactions to watch for.

Dentists recommend replacing your toothbrush every three months, but worn bristles and recent illness can mean it's time sooner.

Nicotine withdrawal peaks in the first week, but cravings can linger for months. Here's what to realistically expect after you quit.

Coughing up phlegm is usually your body doing its job. Learn what phlegm color means and when it might signal something worth checking out.

Learn how syphilis testing works for men, from blood tests to swabs, when to get tested, and how to understand your results.

Itchy eyes are usually caused by allergies, dry eye, or irritation. Learn how to tell them apart and find relief that actually works.

Learn which lymphoma symptoms to watch for, from swollen lymph nodes to night sweats, and when it's worth talking to your doctor.

Inflamed tonsils are miserable. Here's what actually helps with pain relief, home care, and knowing when it's time to see a doctor.

From GLP-1 drugs to OTC supplements, here's what actually works for weight loss, who qualifies, and what to expect from your doctor.