… about peak flow, how it is used to diagnose and monitor asthma, how to test your peak flow at home, and what your … quickly you can blow air out of your lungs.  If you have asthma, you may sometimes have narrow airways. This will make … Peak flow is mainly used to help diagnose and monitor asthma. Peak flow to help diagnose asthma You may be asked to …

… How to quit smoking - the best ways to quit You’re more likely to quit smoking if you have help from friends, family, or a stop … After 24 hours Carbon monoxide leaves your body. Your lungs start to clear.  After 48 hours Your sense of smell and …