The respiratory system
Light a match, and stretch the hand holding it out in front of you. Breathe in deeply through your nose and then out through your mouth, trying as you do so to blow out the flame. How many attempts does it take you to blow out the flame? If it’s several, then there’s a possibility you have a weakened respiratory system. This could have been caused by smoking, a lack of exercise, or a chronic illness of the airways.
Press down on either the upper part or the underside of your foot with your thumb. If there is still an indentation on your foot several seconds after you’ve removed your thumb, then there’s a chance your body has an issue with fluid retention. Go to your doctor to diagnose the cause and start treatment.
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