Weakness is a very general symptom and can have many causes and may be confused with depression and incoordination:
* Depression is when a horse is not as alert as normal and can vary from mild to the point he is not reacting to you. It is a symptom of central nervous disease, pain, or fever.
* Incoordination is when the muscles are strong but the horse is unable to stand straight or travel straight and is also a sign of disease of the nervous system.
* More on Diseases of the Nervous System.

Causes of weakness include: exhaustion, diseases of the muscle, peripheral nerves, neuro-muscular junction, and electrolyte abnormalities. The following diseases are when muscular weakness is a predominant symptom.

Topics on Weakness, Exhaustion & Overheating
	Titles	Subtopics	Posts	Updated
	Overheating and Exhaustion	8	46	Jul 2, 13
	AnhiDrOsis & Deficient Sweating	16	109	Sep 1, 14
	Exercise Intolerence and Poor Performance	15	141	Sep 10, 07
	HYPP, Hyperkalemic Periodic Paralysis	Click link to access data.
	Glycogen Branching Enzyme Deficiency	Click link to access data.
	Epsom Salts and Magnesium Toxicity	Click link to access data.
	Equine Motor Neuron Disease (EMND)	Click link to access data.
	Grass Sickness, Equine Dysautonomia, and Mal Seco	Click link to access data.
	Botulism Poisoning, Shaker Foals	Click link to access data.
	Weakness, Exhaustion, and Overheating topics not covered above	4	56	Sep 14, 07
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