ScienceInsights

Feeling cold all the time? Learn how thyroid issues, anemia, body composition, and daily habits can affect your body temperature.

Clinical trials run through up to 5 phases, each with a distinct purpose—from early safety checks to long-term monitoring after a drug reaches the public.

Anxiety shows up in more ways than worry alone. Learn how it affects your body, sleep, thinking, and behavior—and when it might be time to seek support.

Where your knee hurts when bending can point to a specific cause, from runner's knee to bursitis. Learn what different pain locations may mean.

Learn how to join the Navy Nurse Corps, from education and licensing requirements to the two main paths available for nursing students and working RNs.

Medicare premiums work differently for each part. Learn what drives your costs for Parts A, B, D, and Medicare Advantage, including income adjustments and late penalties.

Cataract surgery is safe and effective, but what does it actually involve? Learn how it works, what recovery looks like, and whether cataracts can return.

From exercise and diet to sleep and supplements, here's what the evidence says about improving erectile hardness naturally.

Practical steps older adults and caregivers can take to lower pneumonia risk, from vaccines and oral care to diet, medication review, and early symptom recognition.

Learn the right Advil dosage for adults and kids, how long it's safe to take, and who should use it with caution.