Is adhd more common in a certain ethnic group?

Attention-deficit/hyperactivity disorder (ADHD) is the most commonly diagnosed mental health disorder in US children. ... Racial/ethnic minorities in particular have been reported to be diagnosed with ADHD at lower rates than white children,7 and therefore may have unmet treatment needs

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