Tag: option a: neurobiology and behaviour

• People use drugs for many reasons: they want to feel good, stop feeling bad by masking the emotions, or perform better in school or at work, or forget about problems for a time being, or they are curious because others are doing it and they want to fit in. The last reason is very common among teens. 
• Hence, People take drugs to Mask the emotions and Forget about the problems for a time being.
•  So, the correct answer is 'Both A and B'.

• Drug abuse is the non-permissive consumption of certain substances or medicinal products that may lead to physical and psychological dependence.
• Commonly abused drugs include marijuana, cocaine, heroin, alcohol, prescription drugs, etc.
• The commonly used illegal drug is Marijuana.
• Signs of drug abuse are bloodshot eyes, pupils larger or smaller than usual, change is sleep patterns, unusual smells on breath, impaired coordination, etc.
• Hence The illegal use of the medicinal product is called Drug abuse.
• So, the correct answer is 'Drug abuse'.

• A drug is any substance (other than food that provides nutritional support) that, when inhaled, injected, smoked, consumed, absorbed via a patch on the skin, or dissolved under the tongue causes a physiological change in the body. 
• In pharmacology, a drug is a chemical substance of known structure, other than a nutrient of an essential dietary ingredient, which, when administered to a living organism, produces a biological effect like Impair physical and mental health and Causes family disputes
• Hence, drugs are the substance which impairs physical and mental health and causes family disputes. 
• So, the correct answer is 'Both B and C'.

• Acquired Immunodeficiency syndrome(AIDS) is caused by a retrovirus called human immunodeficiency viruses(HIV).
• People transmit HIV in bodily fluids, including, blood, semen, vaginal secretions. anal fluids, breast milk.
  
• When an injectable used for AIDS patient is used for the normal individual the HIV virus gets transmitted through blood. Hence The disease caused by the injectable drug is AIDS.
• So, the correct answer is 'AIDS'.

Synthetic drugs are those which are not natural and are created by processing chemical ingredients. Amphetamines is one such drug. Amphetamines affect the activity of the nervous system. They speed up the messages between the body and the brain.
Therefore, the correct answer is option B.

Cirrhosis of liver is characterized by replacement of liver tissue by fibrosis (scar tissue) and regenerative nodules (or lumps that occur due to attempted repair of the damaged tissue). Cirrhosis is most commonly caused by alcoholism, hepatitis-B, hepatitis-C and fatty liver disease.