Harvard Health Blog

If you hear your child start coughing, it's natural to wonder: could this be the flu, or is it another virus like COVID or RSV, or even a common cold? Here's what to know about similarities between these illnesses and what to do if your child does have the flu.

Most people want to live at home for as long as possible as they age, and managing this successfully may mean hiring outside help. Considering this step raises many questions, and answering them honestly will help guide decisions about when and how to proceed.

Small animals like turtles, iguanas, and frogs are often chosen as first-time pets for children, but it may be best to avoid them because they can carry bacteria that can make people sick. Here's what to know about this illness.

Dementia occurs more often among older people with higher levels of hearing loss than among those with normal hearing. A new study found that wearing hearing aids reduced the risk for dementia in people who had significant hearing loss.

Thousands of miles of veins throughout the body bring blood to the lungs to pick up oxygen and nutrients, and get rid of carbon dioxide before returning to the heart to be pumped out again. How do veins work, what problems can occur, and how can you keep these vital blood vessels healthy?

Formula companies claim that toddler formulas, also known as "follow-up formulas," "transition formulas," or "growing-up milks" offer nutritional benefits to toddlers. But are these products necessary and healthy?

The holidays are supposed to be filled with love, laughter, and good cheer. Unfortunately, joyous celebration often deteriorates into discord when family and friends gather during the season. But you don't have to get drawn into arguments if you plan ahead and stay alert for potential triggers.

In the US, more people seem to be seeking out the assistance of a doula when preparing to give birth. While such services may not be covered by insurance, a professional doula can provide emotional and physical support during pregnancy and throughout the birthing process.

Cellulitis, a skin infection that often occurs on the lower leg, develops when bacteria enter the body through a cut, bite, or other wound. A new study shows key aspects of healing typically occur within 10 days of treatment, but symptoms can linger for some time after that.

The holiday season is probably the hardest time of year to resist rich, indulgent foods, but too many salty, fatty, sugary choices can harm your health. Instead, try adding natural flavor to holiday foods with herbs and spices, many of which contain substances that have a beneficial effect on health.

Many people experience a decline in their driving skills as they age. While some choose to stop driving, others resist. Whether it's you or a loved one, planning ahead can help you tackle fixable issues, make transitions easier, and avoid harming yourself or someone else.

Navigating whether or when an older person should limit or stop driving is tricky. Whether these concerns are about a family member or yourself, it's helpful to be aware of red flags and to understand how driving abilities –– and risk for motor vehicle accidents –– change with age.

Loneliness boosts risk for many health problems, and can even contribute to an early death. Many people find it hard to reach out to make new friends, but there are strategies that can help.

The first nonprescription daily oral contraceptive was approved by the FDA earlier this year. Opill is expected to be available in early 2024. Here's what you should know about this new birth control pill.

Headaches are very common in children and teens. We don't tend to think about children getting migraines, but by age 10 one in 20 children has had one. Symptoms may differ from adults and it's important for parents to understand triggers, helpful treatments, and possible red flags.

It's easy to blame running when a person who runs regularly develops arthritis. But that blame may be misguided. Here's a look at the latest research on the topic.

Virtually everyone carries the bacteria Clostridioides difficile, or C. diff. But half a million Americans a year develop a serious C. diff infection due to a gut microbiome imbalance. It disproportionately strikes people in hospitals and nursing homes, and can recur repeatedly.

Just how many hours of sleep are enough for you? The answer varies and it might be better to track sleep quality than focus on the number of hours you log each night.

Lead poisoning is a serious health risk for children. And yet, they may be exposed to lead in their daily lives. Learn the dangers of lead exposure and what you can do to keep your child safe.

A transurethral resection of the prostate is considered the gold-standard treatment for benign prostatic hyperplasia. But newer, less invasive procedures offer faster recovery times and fewer risks of complications. Earlier this year another new procedure won the FDA's approval.

The human body has excess capacity — that is, our organs have more reserve than most of us will ever need. Why are we built with this natural redundancy? And which body parts can safely fail or be removed without impairing health?

When news of the world is overwhelming and awful, our first instinct is usually to shelter our children and not say anything about it to them at all, a strategy that's usually not viable. Instead parents can give children the perspective and skills they need to navigate a sometimes scary world.

The typical American diet isn't very healthy, and dietary shortfalls are more pronounced among people living in lower-income neighborhoods. A study analyzing data from produce prescription programs suggests that improving access to fresh vegetables and fruits may improve heart health.

Merkel cell cancer is a rare form of skin cancer that often spreads aggressively to other areas of the body. Here's what to know about it, including who is more likely to get it and how you can take steps to help prevent it.