Biology Insights

Fluoxetine isn't a stimulant, but it can feel like one at first. Here's why it sometimes boosts energy and how it actually works in the brain.

Zyrtec relieves seasonal allergies, year-round symptoms, and chronic hives, but it has limits. Here's what it treats, how fast it works, and who should use caution.

Vaginal irritation has many causes, from products to hormones. Learn what's normal, what helps, and when to see a doctor.

Mylanta can cause diarrhea due to its magnesium content, but that doesn't make it a safe or reliable laxative. Here's what you should know.

Insulin resistance has multiple causes, from excess body fat and poor sleep to gut bacteria and genetics. Learn what drives it and how to improve it.

Low blood glucose can range from mildly uncomfortable to a medical emergency. Learn what causes it, how to spot the symptoms, and how to treat it safely.

Feeling too high? Learn practical, science-backed tips like black pepper and citrus to ease discomfort, plus what to avoid and when to seek help.

Vitrectomy removes the gel inside your eye to treat retinal problems. Here's what the surgery involves, how recovery works, and what to expect.

Diverticulosis becomes more common as we age, affecting most older adults. Learn who gets it, where it forms, and why most people never have symptoms.

Brain scans and withdrawal studies suggest food addiction may be real, though scientists still debate it. Here's what the research actually shows.

Pancreatitis happens when the pancreas inflames itself. Learn what causes it, how it feels, and how it's treated — from mild cases to serious complications.

Fruit sugar isn't all the same. Learn which fruits are highest and lowest in sugar, and why fiber, ripeness, and form matter more than the number alone.

Cravings are driven by biology, not willpower. Learn what triggers them and simple, research-backed ways to manage them more easily.

Dry skin, irritants, stress, and poor circulation are among the key triggers behind discoid eczema flares and who tends to develop them.

Paxlovid has full FDA approval for COVID-19 treatment. Learn who qualifies, how well it works, and what to know about drug interactions and dosing.

IBS symptoms rarely have one cause. Learn how food, stress, hormones, sleep, and other factors can combine to trigger flares.

From fiber and prunes to laxatives and posture, here's what the evidence says actually helps when you're constipated.

Thorazine was the first antipsychotic drug ever made. Here's how it works, what it's still used for today, and the side effects worth knowing about.