In heavy smokers the alveoli of the lungs are enlarged and damaged which reduces the surface area for the exchange of respiratory gases. This condition is called
Asthma
Silicosis
Emphysema
Anosmia
Alcohol is harmful for
Drugs and alcohol give short-term 'high' and long-term 'damages', Discuss.
Hallucinogens
From which plant cannabiniods are obtained ? Name any two cannabinoids. Which part of the body is effected by consuming these substances ?