<s>[INST] Hi, my 12 year old son is tired all of the time... just lacks energy. We started homeschooling 6 months ago per his request... he is advanced academically and this works well for him. He has friends he see, plays sports, doesn t seem depressed. could this be puberty? He gets 10 to 12 hours sleep. [/INST] HiWelcome to the HCMI understand your concerns but don't worryIt seems to be due to pubertal changes. Ensure a good healthy diet and plenty of fluids. Also, some exercise and outdoor sports will be of help. Rule out anemia by hemoglobin levels.Take care </s>