January is Thyroid Awareness Month.

Your thyroid is a small, butterfly-shaped gland in your neck. But don’t let the delicate description fool you. Your thyroid has a huge impact on your physical and mental health.

The thyroid produces hormones which help control metabolism (the process of turning food into energy) and other bodily functions. Too much or too little thyroid hormone can affect your weight, your period — even your brain.

About 1 in 8 women and people assigned female at birth in the U.S. will have a thyroid problem at some point in their lives. And thyroid disease is common — about 20 million people in the U.S. have some form of thyroid disease. But as many as 6 out of 10 people don’t know they have it.

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Take our quiz to learn more about your thyroid and symptoms of thyroid disease.

1. True or False: Your thyroid gland is located in your upper neck.

2. True or False: There are two main types of thyroid disease.

3. True or False: Weight loss is an early warning sign of thyroid disease.

4. True or False: Your thyroid can affect your period.

5. True or False: Thyroid disease can cause problems during pregnancy.

6. True or False: You’re more likely to develop thyroid disease after menopause.

7. True or False: Thyroid conditions can cause early menopause.

8. True or False: A thyroid scan is the only way to diagnose thyroid disease.

9. True or False: You can’t live without a thyroid.

10. True or False: Women are more likely to have thyroid problems compared to men.