<unk>  refers to a high or low<unk><unk> <unk>  (BMR). It has numerous causes, both physiological (part of the body's normal function) and pathological (associated with disease).
Abnormal basal metabolic rate
Thyroid hormone resistance
Insulin resistance
Pituitary ACTH hypersecretion
Adrenocortical hyperfunction
Problematic social media use
Chronic stress
Problematic smartphone use