Ya I would assume they have old age lungs . Mine feel like walls too I cough a bit . Baby bongs find your inhale limit as enough to hold on did at least three seconds before exhale . Then work your lungs and throat up. I just get so high I push passed that then I get the real side effects. Lol but yes just tell them joints no needs to do some thing that is unenjoyable.One of my friend tried the cannabis oil the first time,he got choked,then he feel chest tightness,his eyes were red...he was so scared...the funny thing is that he can not go to hopistal,he can not tell the doctor:after i smoke cannaibs,i feel not right... I just want to know is that normal for the first time smoker?