Why is that once a person starts taking alcohol or drugs, it is difficult to get rid of this habit? Discuss it with your teacher.
Psychological & physiological dependence of an individual to the intake of certain kinds of drugs and alcohol is called addiction. Once a person start taking alcohol & drugs, it is very difficult to get rid this habit because addiction drive people to take them even when these are not needed or even when their use becomes self destructive. With repeated use of drugs, the tolerance level of the receptors present in the body increases, consequently the receptors responds only to higher doses of drugs or alcohgl leading to greater intake & addiction. Thus, the addiction potential of drugs & alcohol, pull the user into a vicious circle leading to their regular use (abuse) from which he/she may not able to get out.
What are the various public health measures, which you would suggest as safeguard against infectious diseases?
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
What are the various routes by which trans-mission of human immunodeficiency virus takes place?
In your view what motivates youngsters to take to alcohol or drugs and how can this be avoided?
The following are some well-known abbreviations, which have been used in this chapter. Expand each one to its fall form:
(a)MALT (b) CMI
(c)AIDS (d)NACO
(e)HIV
Discuss with your teacher what does ‘a suitable gene' means, in the context of DNA vaccines.
Differentiate the following and give examples of each
(a)Innate and acquired immunity
(b)Active and passive immunity
Hovy does the transmission of each of the following diseases take place?
(a)Amoebiasis (b) Malaria
(c)Ascariasis (d) Pneumonia
Why is that once a person starts taking alcohol or drugs, it is difficult to get rid of this habit? Discuss it with your teacher.
Do you think that friends can influence one to take alcohol/drugs? If yes, how may one protect himself/herself from such an influence?