weight gain – MySymptom

What causes weight gain and severe fatigue?

1. Introduction Weight gain and severe fatigue are primarily caused by endocrine disorders such as hypothyroidism, insulin resistance, or chronic sleep apnea. These conditions disrupt cellular energy production and baseline metabolic rates, leading to an involuntary accumulation of adipose tissue and profound systemic exhaustion. Medical evaluation of thyroid function, glucose metabolism, and sleep architecture is … Read more

Can an Underactive Thyroid Cause Unexplained Weight Gain and Coldness?

1. Introduction Yes, an underactive thyroid, clinically known as hypothyroidism, can directly cause unexplained weight gain and a persistent sensitivity to cold. The thyroid gland produces hormones that govern the basal metabolic rate of virtually every cell in the human body. When hormone production drops, the entire metabolic engine slows down, reducing the number of … Read more