The thyroid is a small gland in the neck that sets the body's speed. When it runs slow (hypothyroidism — the common one, especially in women) or fast (hyperthyroidism), the symptoms are vague enough to be missed for years.

Slow thyroid (hypo)

Fatigue, weight gain despite unchanged eating, feeling cold, dry skin, hair loss, constipation, heavy or irregular periods, low mood. Often mislabeled as laziness or "just stress."

Fast thyroid (hyper)

Palpitations, heat intolerance and sweating, weight loss with good appetite, tremor, anxiety, poor sleep.

The test

A single TSH blood test (a few hundred rupees, any lab) is the screening answer; T4/T3 refine it. Worth testing if you have several symptoms above, a family history, a visible neck swelling (goiter), infertility or recurrent miscarriage, or high cholesterol at a young age.

Treatment is straightforward

Hypothyroidism: one daily thyroxine tablet — cheap, safe, taken on an empty stomach; levels are rechecked to fine-tune the dose, usually lifelong. Hyperthyroidism has effective options too (medication, radioiodine) via a physician. Neither should be managed by hakeem powders — this is one of medicine's most fixable problems when treated properly.

This article is general guidance, not a diagnosis.