Health topic library
Conditions & Prevention Articles
Evidence-aware guides on infectious diseases, prevention, screening, symptoms, travel health, and when to contact a healthcare professional. Browse practical, source-aware guides with clear takeaways, safety notes, and related reading paths.
17 articles in this topic
Browse all articles
Conditions & PreventionWhy Do I Bruise Easily? What to Check First
Easy bruising can follow a bump you barely noticed, thinner skin with age, or medicines that affect bleeding. A new pattern, large unexplained bruises, bruising with other bleeding, or a painful swollen injury deserves clinical assessment. Photograph the marks, record timing and location, and review medicines with a clinician rather than stopping them yourself.
Conditions & PreventionHeart Palpitations at Night: What to Track
Heart palpitations at night may feel like pounding, fluttering, racing, or skipped beats. Pause activity, note what you feel and any other symptoms, and avoid assuming anxiety is the cause. Get emergency help for palpitations with chest pain, severe breathing trouble, fainting, or severe dizziness; arrange assessment for new, recurring, worsening, or prolonged episodes.
Conditions & PreventionDizziness When Standing Up: What to Track
Dizziness when standing up can happen when your circulation does not adjust quickly to the position change, but that pattern alone does not prove low blood pressure. Sit or lie down to prevent a fall, note what the sensation feels like and how long it lasts, and arrange care if it recurs, causes fainting, or comes with warning signs.
Conditions & PreventionMosquito Bite Allergy vs Infection: What Changes Matter?
A large, warm mosquito bite is not automatically infected. Timing and change matter: a fast itchy swelling often fits inflammation, while increasing pain, spreading redness, drainage, or feeling ill needs medical assessment.
Conditions & PreventionNight Sweats: When to Worry and What to Track
Night sweats are worth discussing when they repeatedly soak sleepwear or bedding in a cool room, disrupt sleep, or arrive with another concerning symptom. One warm night under heavy covers is different. Track the pattern, review medicines without stopping them yourself, and arrange care sooner for fever, unexplained weight loss, swollen nodes, persistent cough, pain, or marked illness.
Conditions & PreventionBreastfeeding Support That Actually Helps: A Partner, Workplace, and Care-Team Checklist
Breastfeeding support works best when it changes the environment around a family—not when it adds pressure to the person feeding the baby.
Conditions & PreventionBreastfeeding in Hot Weather: Baby Hydration, Feeding Cues, and Red Flags
Hot days often bring shorter, more frequent feeds and anxious questions about water. Age, feeding method, and warning signs matter more than a universal rule.
Conditions & PreventionN95 Masks for Wildfire Smoke: Fit, Limits, and Safer Use
A well-fitted approved particulate respirator can reduce smoke-particle exposure outdoors, but it cannot filter gases, create oxygen, or replace cleaner air.
Conditions & PreventionHepatitis Testing: Which Questions Belong at Your Next Check-Up?
Hepatitis can be silent, but testing advice is not identical for hepatitis A, B, and C. Use this guide to prepare a focused, locally appropriate check-up conversation.