As one ages, respiratory power will naturally decline. First and foremost, maintaining respiratory fitness throughout one’s life will slow the decline dramatically. Smoking will come back to haunt you, so don’t smoke, or quit now. Performing deep breathing exercises, including Yoga, Qigong, speed walking, stair climbing, dancing and so on are powerful lung tonic lifestyle choices – cross country skiing enlarges your lungs. Antioxidants play a key role in protecting lungs over decades. Lung tonic herbs help maintain healthy respiratory tissues and functions.