What is a stimulants and what does it do to you?
1. A stimulants is a caffeine.
2. Stimulants increase the amount of neurotransmitter at some neurone synapses
3. This increases the speed of reactions and it also makes you feel more alert and awake.

What is a depressants and what does it do to you?
1. A depressants is a alcohol.
2. Depressants slow down the activity of the brain.
3. This causes slow reactions.

What is a painkiller and what does does it do nto you?
1. A painkiller is a narcotics like morphine.
2. Painkillers reduce pain when you have pains.
3. Morphine works by blocking nerve impluses in the brain.

What is a hallucinogens and what does it do to you.
1. A halllucinogens are LSD.
1. Hallucinogens change what people can see and hear.

Long tearm effects of drinking too much alcohol.
1. Alcohol slows down your reactions.
2. Being drunk leads to blurred visions.
3. It can also lower inhibitions (a person's self control.) This may cause people to do things they normally wouldnt. E.g. say bad things to people they dont know and do something that they shouldnt be doing which will cause them into big trouble.
4. Drinking too much too often can cause cirrhosis. A cirrhosis is a disease of the liver.
5. Too much drinking can also lead to brain damage.

What is a pathogens?
A pathogen are microorganisms (microbes) that causes diseases. They include some bacteria, protoza (certain single celled creatures), fungi and all viruses. Pathogens