Biology Insights

The first trimester ends at 13 weeks and 6 days. Here's how pregnancy weeks are counted and what changes as you enter the second trimester.

Turkey provides a modest amount of iron, with dark meat offering nearly twice as much as white. Here's what that means for your diet.

Effexor can raise blood pressure, especially at higher doses. Learn how much of an increase to expect and what your doctor may do about it.

Brown rice has more fiber and minerals, but jasmine rice isn't without its merits. Here's how to choose based on your health goals.

Dosing schedules for common nausea medicines like Pepto-Bismol, Dramamine, and Zofran, plus signs you may be taking too much.

Cytopoint typically lasts 4–8 weeks in dogs, but several factors affect how long relief lasts for your pet. Here's what owners should know.

Most surgical tech programs take 1–2 years, but prerequisites, clinical hours, and certification can affect your timeline. Here's what to expect.

Night terrors in toddlers are scary for parents, but manageable. Learn what triggers them, how to respond, and which strategies actually help reduce episodes.

Bleeding gums usually point to gum disease, but medications, vitamin deficiencies, and health conditions can also be the cause. Here's what to look for.

Gelatin is basically cooked collagen, but does eating it actually help your skin and joints? Here's what the research says.

Some herbs like garlic and turmeric have real evidence for supporting vascular health. Here's what the research actually shows and what to pair them with.

Swelling, bruising, and tenderness all look different depending on sprain severity. Here's what to expect and how to tell it apart from a fracture.

Most styes heal on their own with warm compresses and good hygiene. Learn what actually helps, what to avoid, and when to see a doctor.

Research shows most men last between 5 and 7 minutes. Here's what's normal, what affects duration, and when it might be worth talking to a doctor.

Your shoes could be reinfecting you with athlete's foot. Learn which disinfection methods actually work and how to protect different shoe materials.

Nighttime leg cramps can have simple fixes. Learn what causes them and how hydration, stretching, and sleep position can help reduce how often they happen.

Increased vaginal discharge can happen in early pregnancy, but it's not a reliable sign on its own. Here's what to look for and when to check in with your doctor.

Plan B's effectiveness depends on timing, body weight, and where you are in your cycle. Here's what the research actually says.

The indica vs. sativa debate misses the point when it comes to sex. Learn what actually matters—dose, cannabinoids, and your own biology.

Dehydration feels different for everyone. Learn the physical and mental signs across mild, moderate, and severe levels, plus what to watch for in kids and older adults.