A concussion, as found on Google, is a "temporary unconsciousness caused by a blow to the head.", which means a really hard hit to the head, and then a knock out or a blackout
Some symptoms that are usually associated with a concussion can be but are not limited to: headaches, memory loss (if severe), nausea, vomiting, slurred speech, confusion, and fatigue. There can also be sleep disturbances, sensitivity to any type of change, such as air or light, and disorders of the 5 senses (sound, sight, touch, smell, and taste).
What do you mean can you explain more in detail please
Haemochromatosis is an inherited condition where iron levels in the body slowly build up over many years.
This build-up of iron, known as iron overload, can cause unpleasant symptoms. If it is not treated, this can damage parts of the body such as the liver, joints, pancreas and heart.
Haemochromatosis most often affects people of white northern European background and is particularly common in countries where lots of people have a Celtic background, such as Ireland, Scotland and Wales.
The cardiovascular system transports oxygen to cells through blood and takes away carbon dioxide from the cells.
Hope this helps... mark as Brainliest plz
Say no whenever you are offer alcohol, drugs, or tobacco.
Even when pressured a simply excuse is a better idea than ruining your life. You see many homeless people that still buy tobacco, drugs, or alcohol and no wonder they are homeless every dollar they get is spent on harmful substances. People use these products to wipe there worries away and do not think about the consequences of tomorrow.
