Harvard Health Content API

When considering medical information offered in an online health support group, it’s best to verify it with a doctor or at least compare it with information from a credible source (such as a large national nonprofit health organization). After all, anyone can start or join an online health group; they don’t have to be health experts to share information, which might not be science-based and could be wrong, ineffective, or even harmful. Plus, medical advice might not be appropriate for an individual.

In a 2025 study of nearly a million people with diabetes, those who took GLP-1 drugs had a reduction of 10% to 20% in heart failure, cardiac arrest, lung failure and pneumonia, and dementia, compared with people who took other diabetes medications.

A 2025 study found that people who had received a shingles vaccination had lower risks for stroke and various types of heart disease, including heart failure and heart attacks, compared with people who didn’t receive a shingles vaccine.

Same-day bilateral cataract surgery removes cataracts in both eyes in one surgical session, instead of two surgeries that are a few weeks apart. The approach has many benefits, such as convenience, but it has risks, too. Vision clarity might not be as good as it is when the procedures are done separately. Some doctors fear that vision loss (which is a low risk for any cataract surgery) could possibly occur in both eyes at the same time.

A 2025 randomized trial of people with carpal tunnel syndrome found that 57% of those who had surgery as a first-line treatment recovered within 18 months, without additional treatments, compared with 13% of people who received steroid injections instead.

A 2025 Harvard study found that people who most closely adhered to a Mediterranean or a plant-based diet had up to a 20% lower risk for chronic constipation, compared with people who followed other eating patterns.

A 2025 analysis of randomized trials found that cardiac rehab—a personalized program of supervised exercise and healthy lifestyle coaching—can also help people with atrial fibrillation, an irregular heartbeat that can cause stroke and heart failure.

The trend toward eating plant-rich diets has led to a number of new dietary terms and buzzwords. Examples include the terms “plant-forward,” which describes the shift toward the gradual incorporation of more plant foods into the diet; “plant-based protein,” used for foods that contain a high amount of protein, even some processed foods; and “sustainable eating,” whichrefers to the big picture of food choices and how they can help sustain the environment, the planet, and health.