Extended exposure to certain sounds can be harmful. which sound may damage hearing? refrigerator running (40 decibels) vacuum cleaner running (70 decibels) hair dryer blowing (80 decibels) shotgun firing (145 decibels)

Generally, sounds above 85 dB are harmful, so the sound of 145 dB may damage hearing.

The correct answer is D) shotgun firing (145 decibels)

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

what are the choices?