Harvard Health Blog

A new study cites a remarkable decline in deaths due to HIV infection, and dramatically fewer new cases of HIV infection in the US over the past decade. But there is still a long way to go before declaring victory over HIV/AIDS.

Imagine trying to find a single match from a book of matches in a large room. Not an easy task, right? But if the lights were dimmed and the match was lit, then its location would be immediately apparent. This is the basic idea behind PSMA imaging, a newly approved method for detecting prostate cancer […]

As this year’s challenges and stressors have piled up, many people have found it increasingly difficult to find any joy in their lives. A good portion of our happiness is related to our own attitudes and actions, and the actions of others can show us how to find contentment, happiness — even joy— in the most difficult of times.

Although executive function skills begin to develop in the first year of life, the time at which children reach these milestones varies. Some children experience challenges or delays related to their executive function skills, but these skills can be improved through evidence-based interventions.

Many of us are facing new and challenging conversations with family and friends about travel, gatherings, and COVID safety precautions over the holidays and beyond. Here’s how to successfully communicate your own needs while still showing loved ones that you care about them.

If you have chickenpox as a child, the virus stays in your body, and can emerge later in life as a painful, burning rash called shingles. It’s not fully understood what triggers a resurgence of the virus, but factors that weaken the immune system increase the risk of developing shingles, and it is more common in people over age 60.

When choosing gifts for the children in your life this year, there are toy you should consider — creativity, imagination, and movement should be encouraged — and toys you should try to avoid due to safety concerns or for other reasons.

Since children’s memories of the pandemic are likely to fade, or be forgotten entirely, grandparents have the opportunity to offer them a legacy of sorts by making the effort to record their own personal thoughts about their experiences during this time.

The vaccines from Pfizer and Moderna that could soon be available to treat COVID-19 are mRNA vaccines, which have never before been approved to treat any disease. How do these differ from other types of vaccines, and how were they developed?

A new report suggests eating chili peppers regularly could lower the risk of dying of cancer or cardiovascular disease. One theory attributes such health benefits to capsaicin, an antioxidant that brings the heat. But just how strong are these findings?

Weather affects respiratory function, but many of its effects remain unclear. Researchers analyzed Medicare claims to determine whether storms led to an increase in emergency room visits related to asthma and COPD.

Often, feeling stiff and a little achy when you wake or during the day is related to periods of inactivity, perhaps while sleeping or parked in front of a computer. To counteract this, plan frequent movement breaks and try these stretches focusing on stiff or achy areas.

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.

Gender fluidity refers to changes over time in gender identity and gender expression. For many people, gender identity and expression develop early and stay the same; for others, one or both may change. Understanding and supporting young people exploring gender is important to their emotional and physical well-being.

There has been concern that treating high blood pressure too aggressively could result in blood pressure dropping too much, to a level that could be dangerous. An analysis of studies found that this did not occur, and in fact intensive hypertension treatment actually reduced the risk of such a drop in blood pressure.

Millions of people suffer from the burning, tingling, and numbness of a form of neuropathy called idiopathic sensory polyneuropathy. A recent study directly comparing four medications produced disappointing results, but is a step in the right direction.

This year has been extremely stressful for everyone, and that stress can lead to harmful habits. For those working to stay in recovery from an addiction, the challenge is even more profound. Those in this situation know that the more stressful things are, the more important it is to practice the healthy habits that sustain recovery.

A common treatment for men with intermediate-risk prostate cancer is to combine radiation with drugs that block testosterone — a hormone that makes the tumors grow faster. (This type of treatment is also called androgen deprivation therapy, or ADT). New research is suggesting the sequence of these treatments may be crucially important. Dr. Dan Spratt, […]

Age-related macular degeneration is the leading cause of blindness in people over 60. In order to preserve vision, it’s important to understand the stages of ARMD, its signs and symptoms, how the disease progresses, how to monitor it, and what treatments are available.

The coronavirus pandemic has forced health care organizations to confront the inequities in their systems, particularly those affecting immigrants and communities of color. But once the disparities are acknowledged, what practical steps can be taken to address them?

Endometriosis occurs in women when tissue similar to the lining of the uterus grows in other places in the body, most commonly within the pelvis, causing pain and other symptoms. Many women with this condition are not diagnosed properly until middle age. There are several options for treatment, and it may take time to find what works best for each person.