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How do you tell if your brain is damaged?

Danger signs in adults Have a headache that gets worse and does not go away. Experience weakness, numbness, decreased coordination, convulsions, or seizures. Vomit repeatedly. Have slurred speech or unusual behavior. Have one pupil (the black part in the middle of the eye) larger than the other. More items...

cdc.gov - Symptoms of Mild TBI and Concussion - Traumatic Brain Injury - CDC

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Some mild TBI and concussion symptoms may appear right away, while others may not appear for hours or days after the injury. Symptoms generally improve over time, and most people with a mild TBI or concussion feel better within a couple of weeks. Symptoms of mild TBI and concussion may affect how you feel, think, act or sleep Symptoms of mild TBI and concussion are different for each person. Symptoms may change during recovery. For example, you may have headaches and feel sick to your stomach earlier on. A week or two after your injury you may notice you feel more emotional than usual or have trouble sleeping.

Symptoms of mild TBI and concussion

Symptoms of mild TBI and concussion Physical Thinking and Remembering Social or Emotional Sleep Bothered by light or noise Attention or concentration problems Anxiety or nervousness Sleeping less than usual Dizziness or balance problems Feeling slowed down Irritability or easily angered Sleeping more than usual Feeling tired, no energy Foggy or groggy Feeling more emotional Trouble falling asleep Headaches Problems with short- or long-term memory Sadness Nausea or vomiting (early on) Trouble thinking clearly Vision problems Symptoms may be difficult to sort out as they are similar to other health problems

After a mild TBI or concussion:

A person may not recognize or admit that they are having problems

A person may not understand how the symptoms they are experiencing affect their daily activities Problems may be overlooked by the person with the mild TBI or concussion, family members, or healthcare providers

Seek immediate emergency medical care if you have danger signs

Danger signs in adults

In rare cases, a dangerous blood clot that crowds the brain against the skull can develop. The people checking on you should call 9-1-1 or take you to an emergency department right away if you:

Have a headache that gets worse and does not go away

Experience weakness, numbness, decreased coordination, convulsions, or seizures

Vomit repeatedly

Have slurred speech or unusual behavior

Have one pupil (the black part in the middle of the eye) larger than the other

Cannot recognize people or places, get confused, restless, or agitated

Lose consciousness, look very drowsy or cannot wake up

Danger signs in children

Call 9-1-1 or take your child to the emergency department right away if they received a bump, blow, or jolt to the head or body, and:

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What is the most toxic thing in your body?

sciencefocus.com - Is there any part of my body that's poisonous?

Asked by: Anonymous

The most poisonous part of your body is probably your liver - more specifically, the fat-soluble vitamin A that is stored there. Your liver stores it in a safe form, and releases it and its breakdown products in a controlled manner for use by your body. But if you were to eat another adult's liver (which weighs approximately 1kg, and would make a rather substantial meal) you would receive half the toxic dose in one hit. Vitamin A toxicity progressively produces irritability, delirium and death, as the Australian explorer Douglas Mawson and his Swiss companion Xavier Metz found during a 1911 Antarctic expedition when they ran out of food and were forced to shoot and eat their dogs. Metz suffered more seriously, and eventually died, because Mawson gave most of the comparatively tender liver meat to his travelling companion, as he could not bear to chew on the very tough flesh of his beloved dogs. Don't let this put you off eating liver, though. Just don't eat too much at one sitting! Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.