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Health Topics A-Z
Every subject the site covers, explained plainly, one page each.
510 pages
Puberty
The years when the body develops into an adult body, driven by rising sex hormones.
Pulmonary Rehabilitation
Supervised exercise and education for people with chronic lung disease.
Radon Testing
Testing indoor air for radon, a radioactive gas from soil and rock that you cannot see, smell or taste.
Rate of Weight Loss
How quickly weight can be lost in a way that is safe and likely to be sustained.
Raw Milk
Milk from cows, goats, sheep or other animals that has not been pasteurized, a heat treatment that kills harmful germs.
Reading an Explanation of Benefits
The statement your health plan sends after a claim, showing what the provider charged, what the plan paid and what you may owe.
Reading Recipes Critically
Judging whether a recipe fits the way you actually eat before you cook it.
Reading the Nutrition Facts Label
The standard FDA panel on packaged foods that lists serving size, calories and key nutrients.
Recognizing an Emergency
The symptoms that mean calling 911 rather than waiting.
Recognizing Yourself as a Caregiver
Providing unpaid support to someone who could not manage without it.
Reducing Cancer Risk
The changeable factors linked to lower cancer risk.
Reducing Food Waste
Buying, storing and using food so that less of it is thrown away.
Rehabilitation After a Heart Event
A structured program of exercise, education and support after a heart attack, heart surgery or other cardiac event.
Rehabilitation After Surgery
Regaining strength and function after an operation.
Reporting Side Effects
The FDA MedWatch program, through which anyone can report a suspected reaction.
Resistance Training
Exercise that loads muscle against resistance, whether from weights, bands or body weight.
Returning to Activity After Illness
Rebuilding capacity after a significant illness or hospital stay.
Returning to Work After Illness
Getting back to work after a period of sick leave.
Returning Traveler Illness
Illness developing during or after travel, and what needs urgent assessment.
RSV (Respiratory Syncytial Virus)
A common respiratory virus that usually causes cold-like symptoms but can cause serious lung infections in babies and older adults.
Running for Beginners
Progressing from walking to continuous running, usually through run-walk intervals.
Safe Disposal of Medicines
How to get rid of unused or expired medicines so they cannot be misused or harm children, pets or the environment.
Safe Firearm Storage
Storing firearms in ways that keep them out of reach of children, teens and anyone at risk of harming themselves or others.
Safe Home Canning
Preserving food in jars at home using tested methods that destroy germs and seal the jar.
Safe Internal Cooking Temperatures
The minimum temperatures, measured with a food thermometer, that meat, poultry, seafood and egg dishes need to reach to kill harmful germs.
Safe Lifting at Work
Lifting, carrying, pushing and pulling loads as part of work.
Safe Sleep for Infants
Ways to reduce the risk of sudden infant death syndrome (SIDS) and other sleep-related deaths in babies under 1 year old.
Saturated Fat
The fat found mainly in butter, fatty meat, cheese, cream, coconut oil and palm oil.
Sciatica
Pain radiating down the leg from compression or irritation of the sciatic nerve.
Screen Time and Mood
The relationship between device use, particularly in the evening, and sleep and mood.
Screen Use and Eyes
Digital eye strain: the discomfort, dryness and blurring associated with prolonged screen use.
Sedentary Time
Time spent sitting or reclining while awake, separate from how much you exercise.
Self-Management
The day-to-day decisions a person makes about their own condition.
Sensitive Teeth
Short, sharp pain in response to cold, heat, sweetness or touch, from exposed dentin.
Sepsis
The body's extreme response to an infection, damaging its own tissues and organs.
Setting Rehabilitation Goals
Agreeing what recovery is actually for, in terms of specific activities.
Severe Bleeding
Controlling blood loss that will not stop on its own.
Sexual Function
Difficulties with desire, arousal, pain or orgasm, in any gender.
Sexual Health in Later Life
Sexual activity and risk in older adults, an area routinely left out of both advice and services.
Sexual Health Services
Confidential services providing testing, treatment, contraception and advice.