i had my first joint in 1965, i was 15 years old,and i smoked all through the 60's 70's 80's 90's and still growing and smoking. i dont smoke 24/7 though,just have a couple of joints every night, and at weekends start smoking at about 12 noon till bed time.in all the years that i have smoked i have never had any side effect problems (paranoia etc), to the contary, my health is perfect, my mind works brilliantly, i look 15 years younger than my age,and i have a good long dark head of hair, i think how lucky i was that day in 65 when weed and hassish came into my life, it has kept me young and healthy,and totally stress free,and i will continue to smoke till the day i die.