It’s official: The way you think has as much impact on your health as the food you eat, and the amount of exercise you get! Need proof? Here’s a list of negative thoughts that are literally bad for your health.

Negative thought #1: Cynicism. Scientists often define cynicism as “hostility,” because cynical people tend to be suspicious and mistrustful of others. The problem is that when you’re always second-guessing other people’s actions, you’re always feeling stressed. And a study found that people who showed the greatest levels of cynicism were 25 percent more likely to develop diabetes and heart disease.

Negative thought #2: Predicting doom and gloom. People who constantly fear the worst are said to have a “Type D personality.” Type D people tend to have fewer friends, because they bottle emotions and feel depressed. And research has shown that depression raises stress levels, which increases deadly plaque buildup in arteries.

Another negative thought: Feeling like your life is out of control like when you’re frequently late for appointments, or disorganized.  Researchers have found that organized, self-disciplined people live at least three years longer than those who lead more unstable lives. Why? Experts say it’s because people who take control of their lives tend to feel less stressed – so they’re less likely to smoke or drink.