Recent Blog Articles
Is blood sugar monitoring without diabetes worthwhile?
Large review study finds low risk of erectile dysfunction after prostate biopsy
Does exercise help protect against severe COVID-19?
A new Alzheimer’s drug has been approved. But should you take it?
Need physical therapy? 3 key questions your PT will ask
COVID-19 vaccines: Safe and effective for American Indian and Alaskan Native communities
Should we track all breakthrough cases of COVID-19?
Period equity: What is it, why does it matter?
Common questions about medical cannabis
Mouth-watering summer fruits and vegetables to fill your plate
Harvard Health Blog
Join the discussion with experts from Harvard Health Publishing and others like you on a variety of health topics, medical news, and views.
Do vitamin D, zinc, and other supplements help prevent COVID-19 or hasten healing?
Published April 05, 2021
Certain vitamins and supplements have long been promoted as having benefits for the immune system, which has led some to believe they may have similar effects on COVID-19 — and some doctors have been prescribing them. But so far, study results have not been encouraging.
An emerging treatment option for men with recurring prostate cancer after radiation therapy
Published April 02, 2021
Prostate cancer is often a multifocal disease, meaning that several tumors can be present in different parts of gland at the same time. Not all of these tumors are equally problematic, however. And it’s increasingly thought that the tumor with the most aggressive features — called the index lesion — dictates how a man’s cancer […]
Want to improve your memory? Get a good night’s sleep!
Published April 02, 2021
Sleep is important for your memory, as the brain uses the time you are sleeping to process new information and consolidate it for later recall. If you are tired from a lack of sleep, it’s more difficult to pay attention, and attention is necessary to good memory function.
Can fitness counter fatness?
Published April 01, 2021
Some research has suggested that people who are overweight but also active can experience a reduction in cardiovascular disease risk. Researchers examining this “fit but fat” paradox found that being active is somewhat protective compared to being inactive, but ultimately does not offset the other negative effects of having overweight or obesity.
Summer camp: What parents need to know this year
Updated June 02, 2021
Harvard Health Ad Watch: Mitochondria do a lot for you — what can you do for them?
Updated March 31, 2021
Simple, low-cost, low-tech brain training
Published March 29, 2021
Mentally stimulating activities help the brain create new connections that may prevent cognitive decline as people get older, and there are plenty of simple, low-tech ways to sharpen your thinking that are budget-friendly.
School reopening? What parents need to know and can do
Updated March 30, 2021
Fully vaccinated against COVID-19? So, what can you safely do?
Updated April 05, 2021
Omega-3 fatty acids and the heart: New evidence, more questions
Published March 24, 2021
Omega-3 fatty acids from fish and fish oil have been recommended by the American Heart Association for the past 20 years to reduce cardiovascular events in people who already have cardiovascular disease. But the results of studies of omega-3 supplements have been mixed, leaving both doctors and patients still wondering what to do.
Beyond CBD: Here come the other cannabinoids, but where’s the evidence?
Published March 23, 2021
Given the interest in CBD and the exploding popularity (and big business) of products that contain it, it was only a matter of time before new cannabinoids were discovered and commercialized. But many of these substances have been studied only in animals so far, meaning it is too soon to say if any of their potential benefits will apply to humans.
Zero weight loss from zero calorie drinks? Say it ain’t so
Published March 22, 2021
Trying to cut back on calories by drinking diet soda or flavored sparkling water may not help with weight loss, and some research suggest it may actually lead to weight gain. But why, and what are the alternatives?
Returning to sports and physical activity after COVID-19: What parents need to know
Published March 19, 2021
Most children and teens who have COVID-19 recover completely, but rarely there can be damage to a child’s heart muscle, and the stress of exercise on a damaged heart could lead to a serious condition. Here’s what parents need to know about recent guidance from the American Academy of Pediatrics for children returning to physical activity after COVID-19.
Numb from the news? Understanding why and what to do may help
Published March 18, 2021
The daily onslaught of news during the past year has left many people in a steady state of fatigue, resignation, and grief. The symptoms of collective trauma are widespread and familiar, but one merits special attention: numbness, which is one possible response to an overwhelming situation.
Racial disparities and early-onset colorectal cancer: A call to action
Updated March 17, 2021
4 essential nutrients — are you getting enough?
Updated March 30, 2021
Agoraphobia: Has COVID fueled this anxiety disorder?
Updated May 25, 2021
But I don’t feel like exercising…
Published March 12, 2021
For a long time, the implicit message about fitness has been that it only counts if you are doing it with certain clothing, shoes, equipment, and facilities. This can make people feel that exercise is not for them. Expanding the idea of what counts as exercise — and making it fun — can help motivate people.
You got the COVID-19 vaccine? I have vaccine envy
Published March 11, 2021
Got vaccine envy? Not only has the pandemic upended our lives, differing state priorities and restrictions on eligibility for highly effective COVID-19 vaccines are fueling feelings of jealousy and unfairness that encourage questionable actions and ethics.
Glaucoma: What’s new and what do I need to know?
Published March 11, 2021
Glaucoma, the second leading cause of permanent blindness in the US, is a group of disorders that damage the optic nerve. It is a complex disease, and while there is currently no cure, diagnosis and prompt treatment can slow or stop progression of vision loss. All adults should have regular eye exams starting at age 40, whether vision is normal or not.
A look at the 2020–2025 Dietary Guidelines for Americans
Published March 10, 2021
The Dietary Guidelines for Americans, which are published by the US Department of Health and Human Services and the US Department of Agriculture and are updated every five years, have been updated for the 2020–2025 period. While each iteration builds on the previous set of guidelines, there are some changes this time around, and some items that could have been changed but were not.
Could what we eat improve our sleep?
Published March 09, 2021
Diet, exercise, and sleep work together, and all three can have an effect on our daily well-being and longevity. Sleep impacts our eating patterns, and our eating patterns affect our sleep: lack of quality sleep may make people eat more, and make less healthy food choices, but certain foods contain substances that may enhance sleep.
What is COVID-19 brain fog — and how can you clear it?
Published March 08, 2021
We’ve all experienced the feeling of sluggish, fuzzy thinking and a lack of sharpness, possibly caused by an illness or a medication. But what if that feeling didn’t go away and your thinking didn’t return to normal? That’s the situation for some people who have recovered from COVID-19, and there can be long-term effects on other organs as well.
Heavy metals in baby food? What parents should know and do
Published March 05, 2021
Worrisome levels of arsenic, lead, and other elements called heavy metals that can harm the developing brain are found in some commercial baby foods, according to a recent report. Here’s what parents should know and can do to protect young children.