Worry is not your enemy. It exists because you care about your health, your loved ones, your work, and your future.

Talking aloud to yourself has been shown to improve cognitive functioning, problem-solving, performance, memory, and self-control.

Often, other factors are also at play. "Please see a doctor," says Green, "if your cough lasts more than seven to 10 days, you're coughing up blood, you're experiencing shortness of breath, chest pain ...