2.2M

In 2023, an estimated 2.2 million people ages 12 to 17 had a substance use disorder in the past year.

85%

In 2023, around 85% of people ages 12 and older in the United States with substance use disorders did not receive treatment in the past year.

7/10

In a 2023 national survey, 7 out of every 10 adults who ever had a substance use problem considered themselves to be in recovery or recovered.

50%–75%

Essential tremor is one of the most common movement disorders. It often begins during adolescence or in middle age (40–50 years old). 50% to 70% of cases are inherited (run in families).

Parkinson's disease (PD) is named after James Parkinson, the British doctor who described the condition and its symptoms in an essay titled "An Essay on the Shaking Palsy," published in 1817. While others had written about some of the symptoms before, Dr. Parkinson brought them all together and established PD as a recognized medical condition.

76%

As of 2022, 76% of all people with HIV (29.8 million people) were accessing antiretroviral therapy.

The three oral conditions that most affect overall health and quality of life are cavities, severe gum disease, and severe tooth loss.

You are born with about 10,000 taste buds, but you may start to lose them after age 50.

An estimated 12% of people in the United States have IBS. It affects about twice as many women as men, and IBS symptoms may be worse during menstruation. IBS is most often found in people younger than 50.