Studies have linked the risk of asthma with obesity. Researchers at National Jewish Health in Denver reported that glucocorticoids (meds that control wheezing) are 40 percent less effective in overweight patients than in those of normal weight.
Make one change: Increase your vitamin D intake—which can help improve lung function.
Did you know? Obesity is the No. 1 risk factor for sleep apnea. Extra body fat in the chest and neck can restrict air passages, causing you to wake up frequently to help catch your breath.