© Shutterstock

Forgetfulness - It's normal to forget what we dream about. This happens because our mind gets rid of half of what we dream after 5 minutes. After 10 minutes, you will already have forgotten 90% of a dream!

© Shutterstock

Blind people - Blind people also dream, but those who were born with the condition can only sense things like sounds, smells and emotions. Those who have turned blind over their lifetime can 'see' people and sights in their dreams.

© Shutterstock

Dreams - We all dream whilst we sleep, although we don't often remember what about. Only in exceptionally rare cases of problems with the psyche are people unable to dream.

© Shutterstock

Faces - The people that appears in our dreams are faces that we know. Whether we consciously remember them or not, will will have come across that person at some point in our lives.

© Shutterstock

Dreaming in color - Previous studies revealed that about 12% of us dream in black and white. However, a more recent survey set that number lower, at 4.4%. According to research, the invention of color films may have led to this decline in percentages.

© Shutterstock

Symbolism - Not all our dreams are completely random, as they contain symbols and situations from our real lives.

© Shutterstock

Emotions - One of the most common emotions we feel when we dream is anxiety.

© Shutterstock

Emotions - Negative emotions are also more common in dreams than positive ones, which means that we have more nightmares than good dreams, even though we usually don't remember either.

© Shutterstock

Multiple dreams - On average a person will dream in between 4 and 7 times a night.

© Shutterstock

Animals - Animals also dream whilst they sleep. Studies revealed that different animals had similar brainwaves to humans.

© Shutterstock

Intense dreams - REM is the stage of sleep where our eyes move rapidly even though we are not awake. During this phase, which can last from 90 to 120 minutes at a time, we dream the most deeply and vividly.

© Shutterstock

Waking up - People who are woken during the REM phase remember their dreams more clearly and vividly than those who sleep through the whole night.

© Shutterstock

Average time - Each person dreams for between one and two hours on average, meaning that we will dream several times in one night.

© Shutterstock

Senses - External stimuli from our surroundings are often incorporated into our dreams by the human brain, such as a ringing alarm clock or knock on the door.

© Shutterstock

Gender differences - Men and women dream in different ways and of different people. For example, 70% of the people in men's dreams are male.

© Shutterstock

Gender differences - Whereas women dream about men and women in an even ratio.

© Shutterstock

Premonitions - Some dreams can bring us premonitions whereas others can revisit the past. Research has indicated that 18% to 38% of people have envisaged future situations in their dreams whilst 70% have dreamed of something that already happened.

© Shutterstock

Snoring - Even though it has not been scientifically proved, some studies show that people do not dream when they snore.

© Shutterstock

Dreaming solves problems - When you dream, your brain is busy trying to resolve everyday problems. If you're learning a new skill or studying new material then your dreams can really help!

© Shutterstock

Active mind - Studies also reveal that our mind is more active when we dream than when we are awake! Even though our bodies are resting whilst we sleep, our minds are at work solving problems and learning.

© Shutterstock

Kids - Up until the age of 3 years old, children do not appear in their own dreams. Instead they dream of other images.

© Shutterstock

Nightmares - It is normal for kids to have nightmares, especially between the ages of 4 and 7 years old.

© Shutterstock

Smoking - Studies show that people who are trying to give up smoking have dreams which are much more vivid.

© Shutterstock

Symbolism - There are some dreams which tend to have meanings in real life. For example, if you dream that you are lost and don't know the way then this can mean that you have a big decision to make.

© Shutterstock

Missing public transport - In other types of dreams, you are usually running late and miss a bus or train by a fraction of a second. This could mean that in real life you have missed an important opportunity.

© Shutterstock

Illness or death - Dreams where a loved one is ill or dies are also very common, and usually mean that we are afraid of losing something in real life.

© Shutterstock

Chased - Dreaming that you are being followed by someone or something can turn into a terrifying nightmare. A possible meaning behind this could be that you feel threatened by something in real life.

© Shutterstock

Falling - This is also one of the most common types of dream. A person will typically dream of falling from a high place if they are feeling emotionally insecure about something in real life.

© Shutterstock

Water - Dreaming of water is very normal, and can mean simply that you are thirsty or need to go to the bathroom.

© Shutterstock

Variation - Even though these different types of dreams can mean certain things, none of these meanings are 100% accurate as each person is different.

© Shutterstock