Common Questions

Vaccine Hesitancy: Common Questions

Delay or refusal of vaccination despite availability.

Vaccine Side Effects: Common Questions

The expected reactions after vaccination, and the rare ones that need attention.

Vaccines During Pregnancy: Common Questions

Vaccines given in pregnancy to protect the pregnant person and to pass antibodies to the baby before birth.

Vaccines for Travel: Common Questions

Immunizations recommended or required for particular destinations.

Vaping and E-Cigarettes: Common Questions

Battery-powered devices that heat a liquid, usually containing nicotine, into an aerosol that is inhaled.

Vaping and Teens: Common Questions

Using e-cigarettes and other vaping devices, which heat a liquid, usually containing nicotine, into an aerosol that is inhaled.

Vegetarian and Vegan Diets: Common Questions

Eating patterns that exclude meat, or all animal products.

Vitamin B12 Deficiency: Common Questions

Too little vitamin B12 for red blood cell production and nerve health.

Vitamin C: Common Questions

A water-soluble vitamin needed for collagen production and immune cell function.

Vitamin D and Bone: Common Questions

The role of vitamin D in calcium absorption and bone mineralization.

Vitamin D and Hormones: Common Questions

Vitamin D's role as a hormone regulating calcium, and its interaction with the parathyroid glands.

Vitamin D: Common Questions

A fat-soluble vitamin that helps the body absorb calcium and phosphorus and keep bones strong.

Walking: Common Questions

The most accessible form of moderate activity, requiring no equipment, venue or skill.

Warming Up and Cooling Down: Common Questions

Raising tissue temperature and rehearsing the movement before training, and slowing down gradually afterward.

Warning Signs: Common Questions

The symptoms that warrant a checkup because they can indicate cancer.

Weekly Activity Targets: Common Questions

The amount and type of physical activity the Physical Activity Guidelines for Americans ask of adults each week.

Weight and Mental Health: Common Questions

The two-way relationship between weight, mood, self-image and eating behavior.

Weight Fluctuation: Common Questions

The day-to-day movement on the scale that has nothing to do with body fat.

Weight Maintenance: Common Questions

Keeping weight off after losing it, which has its own evidence base and its own skills.

West Nile Virus and Mosquitoes: Common Questions

A virus spread by the bite of infected mosquitoes and the leading cause of mosquito-borne disease in the continental US.

When Caring Ends: Common Questions

The period after caregiving stops, through bereavement or a move into a care facility.

When to Go to the ER: Common Questions

The hospital emergency room (emergency department), open around the clock for serious injury and illness.

Whole Grains: Common Questions

Grains that keep the bran, germ and endosperm, such as whole-wheat flour, oats, brown rice and barley.

Wildfire Smoke: Common Questions

Smoke from wildfires, which contains fine particles (PM2.5) that can travel hundreds of miles and harm the lungs and heart.

Work-Related Stress: Common Questions

Harmful physical and emotional reactions that occur when the demands of a job do not match a worker's resources or needs.

Workplace First Aid: Common Questions

The first aid provision employers must make, and what to do in the first minutes.

Workstation Setup: Common Questions

Arranging a desk, chair and screen to reduce discomfort during sustained work.

Wound Care: Common Questions

Cleaning and dressing minor cuts and scrapes so they heal without infection.

Young Caregivers: Common Questions

Children and teenagers providing care for a family member.

Zinc: Common Questions

A trace mineral needed for immune function, wound healing and taste.