Uncontrollable and embarrassing laughter can be a symptom of a brain tumor, cyst, Angelman syndrome, Tourette syndrome, an acute stroke, drug abuse, dementia and anxiety. The laughter demonstrates there is a malfunction in the way the nervous system transmits signals.
Edgardo C Gamboa, MD
Location and Office HoursThe Neurology Center
Hays, KS 67601
When is laughter a medical symptom?
Discovery Health answered
What is a level of consciousness?
Level of consciousness is a term used to describe a person's awareness and understanding of what is happening in his or her surroundings. There are three main levels of consciousness:
Consciousness is an awake state, in which a person is fully aware of his or her surroundings and understands, talks, moves and responds normally.
Decreased consciousness is a state in which a person appears to be awake and aware of surroundings (conscious) but is not responding normally. While in a state of decreased consciousness, a person may not answer when spoken to, stare straight ahead and have no facial expression. Others may think the person is acting confused, odd or sleepy. Later, the person may not be able to recall what happened.
Unconsciousness is a state in which a person is not aware of what is going on and is not able to respond normally to things that happen to and around him or her.
- Fainting is a brief form of unconsciousness.
- Coma is a deep, prolonged state of unconsciousness.
- General anesthesia is a controlled period of unconsciousness.
© Healthwise, Incorporated.
What is the thalamus?
Mehmet Oz, MD, Cardiology, answeredThink of the thalamus as a train station in a major city that acts as a hub for many smaller locations. That's because many different parts of the brain run through it; the thalamus takes sensory information from the spine and then fine-tunes what movements you make before they even start. It's really responsible for making actions smooth (problems with the thalamus can result in tremors or non-smooth motor movement).
Find out more about this book:YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger
See all Brain and Nervous System questions