Harvard Health Blog

Read posts from experts at Harvard Health Publishing covering a variety of health topics and perspectives on medical news.

Articles

Shingles of the eye can cause lasting vision impairment

There are about one million cases of shingles in the US each year, and up to 20% of those involve nerves in the head, where the infection can affect various parts of the eye. If a case of shingles involves the upper face, forehead, or scalp, it is important to see an ophthalmologist promptly, because complications can lead to eye damage and possible vision impairment.

New dietary guidelines: Any changes for infants, children, and teens?

The US Department of Agriculture has published its periodically updated dietary guidelines, and for the first time advice for babies and toddlers is included. It's never too early to start instilling good eating habits in kids, and awareness of what children should and shouldn't eat is one way parents can get their kids on the right track.

3 simple strategies for stress relief

As we wade through our daily lives, stress is almost impossible to avoid –– particularly these days. Instead of enduring stress and letting it engulf you, try one or more of these three easy strategies to relieve it.

Need surgery? Should you avoid your surgeon’s birthday?

Researchers have examined many factors that can influence the outcome of surgery — both obvious and not-so-obvious ones. A recent study asked whether having surgery on the surgeon’s birthday had any effect on how patients fared.

How not to lose money because of Alzheimer's disease

Researchers found that people who go on to develop Alzheimer's disease or a related disorder are more likely to miss paying a bill prior to being diagnosed, but such people face more significant related issues: poor financial decision-making and falling victim to financial scams.

Do hair dyes increase cancer risk?

Many studies have explored the relationship between hair dye use and risk of cancer or cancer-related death, with conflicting findings. In a recent study, researchers analyzed survey data from over 117,000 women collected over several decades regarding hair dye use and overall cancer risk.

More intensive treatment of DCIS reduces the risk of invasive breast cancer

With increased rates of diagnosis of very early breast cancer known as ductal carcinoma in situ, there has been controversy about treatment. A recent study found that having DCIS was likely to lead to invasive breast cancer later, and also that women who chose more intensive treatment early were less likely to have invasive breast cancer.

Alcohol harms the brain in teen years –– before and after that, too

During adolescence, the brain grows and changes in crucial ways and is particularly vulnerable to the effects of alcohol. When teens and young adults drink alcohol, it can interfere with brain development processes and cause long-lasting effects.

Exercise matters to health and well-being, regardless of your size

Regardless of your size or fitness level, exercise has multiple benefits. Almost anything that gets you moving counts, and some activity is always better than none. These suggestions can help you make exercise work for you.

Can I take something to prevent colorectal cancer?

Screening for colorectal cancer can lower mortality, but it varies in effectiveness and is not always possible to perform, so alternatives are needed. Researchers analyzing studies found evidence for regular use of low-dose aspirin, leading the US Preventive Services Task Force to recommend it for some people.

3 simple steps to jump-start your heart health this year

Several habits can improve your heart health (and, as a side effect, may make you less vulnerable to infections like the flu or COVID-19). Focusing on a few of these is an excellent way to take care of your heart — and boost your overall health in the process.

CBD and other medications: Proceed with caution

Products containing cannabidiol (CBD) are very popular, promising relief from a wide range of maladies. But if you are considering taking a product containing CBD, be aware that if you are taking any other prescription or over-the-counter medications, supplements, or herbal products, CBD can interact with them and cause unexpected side effects.

Can gout be prevented?

Gout, a debilitating form of arthritis, is on the rise compared with rates in prior decades. Obesity is probably a significant factor in this increase. Now, a new study suggests that three-quarters of gout cases in men might be completely avoidable by following certain protective health habits.

COVID-19 and the heart: What have we learned?

Death rates from COVID-19 have dropped significantly since the start of the pandemic, but people with cardiovascular disease are at much higher risk of having a severe form of it. It’s now clearer why this is so, and how the virus can cause heart damage.

Hormonal therapies for advanced prostate cancer linked to a higher risk of falls and fractures

Falls rank among the top causes of death and injuries among the elderly, and the risk increases significantly in older people being treated for cancer. Now, investigators are reporting that a newer class of drugs for advanced prostate cancer is associated with a significant increase in fall risk. Called androgen receptor inhibitors, or ARIs, these […]

Sexual health and gender-affirming care

The lived experience of every transgender and gender diverse person (TDG) is unique, as are their approaches to gender affirmation. Some may choose to affirm their gender only socially, or not at all, while others use a variety of medical and surgical procedures to do so. How do certain choices affect sexual health?

Wondering about COVID-19 vaccines if you're pregnant or considering pregnancy?

If you are pregnant or are thinking about becoming pregnant, you may have questions about getting a COVID-19 vaccine. Get informed by consulting trusted health sources, and talking with your medical providers.

We’re supposed to make resolutions now?

After everything that has happened in 2020, making New Year’s resolutions might be too much to expect of many. Setting goals for the coming year seems like too much to ask right now. Is it okay to just give yourself a break this year? Or is there another way of looking at the whole situation?

3 easy ways to eat a healthier diet

The very best intentions for healthy eating can fail if a new diet is too ambitious or restrictive. Taking small, easy steps toward healthier eating—and taking them one at a time—can help you make lasting changes.

Do pro-inflammatory diets harm our health? And can anti-inflammatory diets help?

Researchers found that people who ate larger quantities of pro-inflammatory foods had a higher risk of cardiovascular disease. Understanding the link between diet and inflammation may help identify specific dietary patterns and foods than can diminish chronic inflammation and improve health.

The health effects of too much gaming

While playing video games can be a fun pastime, and there are some potential benefits, there are health risks associated with too much gaming. They include repetitive stress injuries, vision problems, sleep deprivation, depression, and possibly addiction to playing.

Making the most of physical activity apps

Most people know exercise is good for their health, but only about half of Americans meet the recommended physical activity guidelines. Making exercising more fun helps keep people interested, and research has demonstrated that there is a relationship between using activity apps and increased engagement in exercise.

Good news: Deaths due to HIV are way down

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.

New high-resolution imaging scans approved for use in prostate cancer

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 […]

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