Health Library
![](https://cdn.statically.io/img/healthlibrary.brighamandwomens.org/wellnessCenter.png)
Your mental health is just as important to your overall well being as your physical health. Here's information on a range of mental health topics, plus ideas on how to cope when your life hits an emotional bump.
Heart disease is the biggest health risk Americans face today. If you don’t have heart disease now, you can help prevent it. If you’ve already been diagnosed with heart disease, you can keep it from getting worse. Here are the tools to get you started.
Although genetics determines how long we will live, it's the lifestyle we choose that will determine how healthy we are as we age.
![](https://cdn.statically.io/img/healthlibrary.brighamandwomens.org/InteractiveTools-Quizzes.png)
Radon is a gas that you can't see or smell, but is present in nearly all the air around us. Everyone breathes in radon every day, usually at low levels. People who inhale high levels of radon are at increased risk for developing lung cancer. Radon is a problem in homes in which higher concentrations collect. Find out more about radon by taking this quiz.
Experts are increasingly urging people to know their BMI, a figure that takes into account not just weight but also height to indicate body fat.
Breast cancer is the most commonly diagnosed cancer in women (other than skin cancer). The American Cancer Society reports the breast cancer death rate is declining, probably because of earlier detection and improved treatment. This short assessment will help you determine if you have major risk factors for breast cancer.
![](https://cdn.statically.io/img/healthlibrary.brighamandwomens.org/clear.gif)
Myasthenia gravis is a disease of the central nervous system characterized by sporadic muscular fatigue and weakness. It occurs chiefly in the muscles of swallowing and chewing, as well as the muscles of the eyes, face, and neck. This video explores possible causes of this disease, as well as available treatments.