Improving healthspan—the years lived in good health, free from serious chronic disease or disability—can feel overwhelming. In the United States, people now spend an average of 12.4 years in poor health, up from 10.9 years in 2000 (AMA). This places the U.S. last among 183 countries worldwide (WHO). If we focus on just one factor—mental health—we find it accounts for 10.6% of those lost years globally. That translates into 1.314 years of diminished quality of life.

What would it mean if we could reclaim that time?

Beyond the emotional toll, poor mental health worsens physical health, limits independence, and increases the risk of chronic disease. Mental well-being is inseparable from overall healthspan.

The good news: everyday actions make a difference. Exercise reduces symptoms of depression and anxiety while protecting against cognitive decline. Nutrition supports brain health and stabilizes mood. Sleep restores mental resilience. Reducing harmful substance use lowers the risk of both mental and physical decline. Social connection combats loneliness, which research shows is as harmful as smoking 15 cigarettes a day. Mindfulness, relaxation, and time in nature lower stress and restore energy.

If we get hyper-focused on mental health, the ripple effects are powerful. Individuals could reclaim over a year of good-quality life. Families would see loved ones remain active and independent for longer. Society would benefit from lower healthcare costs, greater productivity, and stronger intergenerational ties. Even halving the burden of mental disorders would add months of healthier, more fulfilling life.

Tackling the 12.4 years of poor health Americans face may seem like an impossible mountain to climb. But starting with the person in the mirror offers a clear, powerful path forward. Reclaiming 1.314 years isn’t just possible—it starts with prioritizing mental health today.