Frozen (the cold will bother you…)

Wynne Armand, MD
Wynne Armand, MD, Contributing Editor

When it’s really cold and windy, frostbite can set in more quickly than you might think. But it’s also easy to take the right precautions to protect yourself and your family during outdoor activities this winter.

Answer these 5 questions to help make your New Year’s resolutions stick

Marcelo Campos, MD
Marcelo Campos, MD, Contributor

If you want to keep your New Year’s resolutions, you need to approach them as a process of behavior change, make your goals realistic, and have a specific plan for how you will reach them.

Avoiding holiday excess (and what to do if you overdo it)

Monique Tello, MD, MPH
Monique Tello, MD, MPH, Contributing Editor

During the holiday season it’s easy to indulge in too much rich food or alcohol (or both), but some strategic planning ahead of your temptation-filled events can keep you feeling good. And if you’ve already had too much, there are things you can do to feel better quickly.

Is there a link between alcohol and skin cancer?

Emily S. Ruiz, MD, MPH
Emily S. Ruiz, MD, MPH, Contributor

An analysis of studies found an association between alcohol consumption and increased risk of certain skin cancers, but there is no solid evidence of a direct connection.

Fish oil capsules: Net benefits for the heart are limited

Julie Corliss
Julie Corliss, Executive Editor, Harvard Heart Letter

At one time there was hope that omega-3 supplements in the form of fish oil capsules might prevent heart disease, but 15 years of research has found this belief to be untrue, and taking fish oil could even be harmful to some people.

Heart rate variability: A new way to track well-being

Marcelo Campos, MD
Marcelo Campos, MD, Contributor

Measuring heart rate variability provides a way to see the impact of stress, which can be a motivator to make healthier lifestyle choices that can help counteract it.

New high blood pressure guidelines: Think your blood pressure is fine? Think again…

Monique Tello, MD, MPH
Monique Tello, MD, MPH, Contributing Editor

There’s been plenty of talk about the new blood pressure guidelines, but most people just want to know what the new categories mean, and what they should be doing to improve their blood pressure so they don’t find themselves needing to take medication.

Self-care: 4 ways to nourish body and soul

Monique Tello, MD, MPH
Monique Tello, MD, MPH, Contributing Editor

It’s crucial to take care of ourselves physically and mentally, especially when others depend on us. Here are four ways you can incorporate taking better care of yourself into your everyday routine.

What’s new with the flu shot?

Dominic Wu, MD
Dominic Wu, MD, Contributing Editor

If you are planning to get a flu shot but have not yet done so, it may be worth waiting a little longer, as data on patients from four recent flu seasons found that protection against the virus declined over the course of the winter.

Researchers may have discovered a cause of multiple sclerosis

Robert H. Shmerling, MD
Robert H. Shmerling, MD, Faculty Editor, Harvard Health Publishing

Looking for possible causes of multiple sclerosis, researchers found that people who had a concussion prior to age 20 had a greater risk of developing MS, suggesting head injuries are a risk factor.