A sentence that has two main clauses that express two or more independent but related thoughts of equal importance is referred to as a sentence.

compound sentence

Explanation:

A sentence comprises of words that are used for the expression of interrogations, command, pleading or exclamations. At least, a sentence must consist a verb, an object and a subject. There are four main different types of sentence and they are given below;

(1). Interrogative Sentence: this type of sentence is used to ask questions.

(2). Simple sentence: this type of sentence is Declarative in nature.

(3). Imperative Sentence; this type of sentence is used in giving instructions, direction or command.

(4). Exclamatory Sentence: this type of sentence are used to show ones emotion.

Other types of sentence are the simple sentence, compound sentence, compound complex and so on.

A compound sentence is the one defined in the question above, that is, " A sentence that has two main clauses that express two or more independent but related thoughts of equal importance..."

these are common warning signs of overtraining syndrome:

washed-out feeling, tired, drained, lack of energy

mild leg soreness, general aches, and pains

pain in muscles and joints

sudden drop in performance

insomnia

headaches

decreased immunity (increased number of colds, and sore throats)

decrease in training capacity/intensity

moodiness and irritability

depression

loss of enthusiasm for the sport

decreased appetite

increased incidence of injuries.

a compulsive need to exercise