Preventive care Archive

A reasonable and well-intentioned effort to reduce and relieve pain can inadvertently lead to a potentially life-threatening addiction, but there are some surprisingly simple ways to avoid such scenarios.

Make the most of your skin barrier to ward off certain types of disease. Hint: It pays to moisturize.

Picture it: You're the body's military commander, and you're reviewing your protective forces. Immune system? Check. Stomach acid? Check. Beneficial gut bacteria? Check.

Don't forget to include your skin: it's one of the most important bastions in the fight against disease, keeping harmful organisms and substances from getting inside the body.

Are artificial sweeteners benign or a threat to your long-term health? A recent study adds a new element to the debate.

Artificial sweeteners seem to offer a tantalizing free pass to dessert. These low- or no-calorie additives taste like sugar, but your body can't absorb them the same way it does natural sugars. You get the taste without the calories, which should mean that you can eat them guilt-free. Right?

Over the years, experts have increasingly questioned whether artificial sweeteners are too good to be true. Are they really your ticket to a ­low-calorie treat — or will you wind up getting your just desserts for trying to outsmart Mother Nature?

Ask the doctor

Q. Will we have a vaccine to prevent COVID-19 and, if so, when?

A. I'm optimistic because never in human history has so much scientific time and effort been spent trying to make a vaccine. But it won't it be easy. As fast as possible, the vaccine scientists need to prove, first, that a vaccine is safe (minimal side effects) and, second, that it works to reduce a person's risk of getting the disease. Then they need to produce enough of it to immunize most of the 7.6 billion people on earth. Doing all of this within two to three years of a new virus being discovered would be an unprecedented achievement.

The stigma is fading, but learn the pros and cons before trying it.

Despite the hype and popularity of medical marijuana, you may not be sure if it's something to consider. You're right to be cautious; the use of marijuana to treat health problems is still being studied, and we don't have all the answers about its risks and benefits.

We do know that medical marijuana use among older adults is increasing. "Older adults tend to use it for physical ailments. No. 1 is chronic pain. Insomnia is another big one, too. Older people have a hard time sleeping, and there aren't a lot of other safe options," says Dr. Peter Grinspoon, a primary care physician with Harvard-affiliated Massachusetts General Hospital.

Here's what you need to know so you can see your doctor without leaving home.

Remember when "virtual" doctor visits became available a few years ago? Being able to chat with a doctor on a video call instead of an in-person office exam was novel, but it never caught on as a mainstay of treatment.

That changed in the spring of 2020, when the pandemic hit and telemedicine rocketed from novelty to necessity. "At Massachusetts General Hospital and Brigham and Women's Hospital, we did 1,600 virtual encounters across the system in February. In March it was 89,000, and in April it was 242,000. That's the kind of growth we're experiencing," says Dr. Joseph Kvedar, a dermatologist with Harvard-affiliated Massachusetts General Hospital, senior advisor for virtual care at ­Partners HealthCare, and president of the American Telemedicine Association.