Drugs and Medicines

To help people suffering from pain or disease.

Legal recreational drugs are those like tobacco and alcohol, whereas illegal recreational drugs include cannabis, ecstasy, and heroin.

Their danger level, with Class A being the most dangerous and Class C being the least dangerous.

<p>Addiction, damage to the body, and personal and social problems.</p> Signup and view all the answers

<p>Nicotine, which increases heart rate and blood pressure, and makes blood vessels narrower.</p> Signup and view all the answers

<p>Tar is a chemical in tobacco that causes cancer of the lungs, mouth, and throat, and traps dirt and microbes in the lungs.</p> Signup and view all the answers

<p>They produce sticky mucus that traps dirt and microbes, which is then moved out of the lungs by cells with tiny hair-like parts called cilia.</p> Signup and view all the answers

<p>Nicotine causes the alveoli to become narrower, making it more difficult for gas exchange to occur.</p> Signup and view all the answers

<p>It damages the cilia.</p> Signup and view all the answers

<p>Painkillers relieve symptoms but do not kill the pathogen. An example is paracetamol.</p> Signup and view all the answers

<p>It speeds up messages in the nervous system, making one feel more alert and shortening reaction times.</p> Signup and view all the answers

<p>They can damage the liver and heart, cause loss of memory and concentration, and bring an increased risk of mental health issues.</p> Signup and view all the answers

<p>They slow down messages in the nervous system, making one feel less alert and lengthening reaction times.</p> Signup and view all the answers

<p>Heroin.</p> Signup and view all the answers

<p>They can cause liver damage, brain damage, and death.</p> Signup and view all the answers

<p>The effects of drugs can vary because people respond differently to them.</p> Signup and view all the answers