Do you feel tired all the time even after getting enough sleep? Have you gained weight for no clear reason? Do you feel constantly cold even in warm weather? These symptoms may be a message from your body that your thyroid gland — that small butterfly in the front of your neck — isn’t working as it should. Hypothyroidism is one of the most common hormonal disorders in the world, and estimates suggest that one in eight women and one in 40 men may have it without knowing.

What is hypothyroidism?

The thyroid gland is a small butterfly-shaped gland located in the front part of the neck, and it produces two main hormones: T3 (triiodothyronine) and T4 (thyroxine). These hormones control the metabolism process in every cell of the body. When the gland secretes an insufficient amount of these hormones, all body systems slow down — and this is what we call hypothyroidism or an underactive thyroid.

Common causes

  • Hashimoto’s disease (Hashimoto’s Thyroiditis): An autoimmune disease where the immune system mistakenly attacks the thyroid gland, and it is the most common cause.
  • Radioactive iodine treatment or surgery: Treatments for hyperthyroidism may lead to its underactivity.
  • Iodine deficiency: Iodine is essential for hormone production, and its deficiency is common in some regions.
  • Medications: Some drugs like lithium and amiodarone may affect thyroid function.
  • Postpartum thyroiditis: Occurs in some women during the first year after childbirth.
  • Pituitary gland disorders: Rarely, the cause may be a disorder in the pituitary gland that controls the thyroid.

Symptoms — How do you know your thyroid is underactive?

Hypothyroidism symptoms often develop slowly, and it may take years before the patient links them to the thyroid gland. Symptoms include:

  • Fatigue and exhaustion: Feeling tired even after sleeping for enough hours.
  • Unexplained weight gain: Slowed metabolism leads to fat storage.
  • Cold sensitivity: Feeling colder than those around you.
  • Dry skin and hair: Skin becomes rough and hair becomes brittle and falls out.
  • Constipation: Slowed bowel movements.
  • Slow heart rate: Less than 60 beats per minute.
  • Weak concentration and memory: Known as “brain fog.”
  • Muscle and joint pain: Stiffness and muscle spasms.
  • Menstrual disorders: Heavy or irregular periods.
  • Depression and mood swings: Low thyroid hormones affect neurotransmitters.

Diagnosis — The right steps

Diagnosing hypothyroidism relies on a blood test to measure:

  • TSH (Thyroid-Stimulating Hormone): The most sensitive test. High TSH means the pituitary gland is pumping hard to stimulate the thyroid — evidence of underactivity.
  • Free T4 (Free Thyroxine): Low levels with high TSH confirm the diagnosis.
  • Thyroid antibodies: To detect Hashimoto’s disease.

It is recommended to undergo regular thyroid screening if you have a family history of the disease, or if you are a woman over the age of 35.

Treatment — A Simple and Effective Solution

The good news: hypothyroidism treatment is simple, effective, and safe. The treatment is based on taking synthetic thyroid hormone (Levothyroxine — Levothyroxine) which is chemically identical to the natural T4 hormone. The treatment is:

  • Lifetime in most cases (but it’s not boring — one pill a day).
  • Very safe when taken in the right dose — no major side effects.
  • Needs follow-up every 6-12 months to adjust the dose.
  • Taken on an empty stomach (30-60 minutes before breakfast) and not taken with calcium or iron or coffee.

Once treatment begins and the dose is adjusted, symptoms gradually disappear and the body returns to its normal state.

Practical Tips for Living with Hypothyroidism

  1. Adhere to medication daily: Make the Levothyroxine pill part of your morning routine — set an alarm or use a weekly pill box.
  2. Don’t stop the medication on your own: Even if you feel better, continuing treatment is necessary because hypothyroidism is not cured, but treated.
  3. Watch for drug interactions: Do not take Levothyroxine with calcium or iron or antacids — leave 4 hours between them.
  4. Avoid excessive stress: Practice light exercises like walking and yoga, and focus on good sleep.
  5. Avoid excessive stress: Practice light exercises like walking and yoga, and focus on good sleep, and Follow up on your tests regularly: Even if you feel better, regular testing is necessary to adjust the dose, especially in case of weight change or pregnancy.

The Difference Between Myth and Fact

Myth: “Hypothyroidism only occurs in the elderly.”
Fact: It can occur at any age, including children and adolescents. It is more common in women after the age of 30.

Myth: “If you don’t gain weight, you don’t have hypothyroidism.”
Fact: Not all patients gain weight. Some patients do not change their weight significantly, and symptoms such as fatigue and hair loss may be the only signs.

Myth: “Herbs and natural mixtures cure the thyroid gland.”
Fact: There is no scientifically proven herbal remedy that treats hypothyroidism. Relying on mixtures without medical treatment may lead to serious complications. Do not stop taking medication without consulting a doctor.

Frequently Asked Questions (FAQ)

Q: Does hypothyroidism affect pregnancy?

Yes, untreated hypothyroidism may cause difficulties in getting pregnant and increase the risk of miscarriage and fetal development problems. However, with proper treatment and adjustment of thyroid hormones before and during pregnancy, safe pregnancy and natural childbirth are possible. It is essential to follow up on the medication dose with the doctor as soon as pregnancy is known, as the dose may increase.

Q: Can hypothyroidism be completely cured?

In most cases (especially those caused by Hashimoto’s), treatment is for life. However, in some temporary cases — such as thyroid inflammation after childbirth, treatment may be stopped after the condition improves, but this is rare and requires close monitoring by a doctor.

Q: Are there foods that should be avoided with hypothyroidism?

Yes, there are some foods that affect the absorption of thyroid medication or its function: large amounts of soy, cruciferous vegetables (cauliflower, cabbage, broccoli) in very large quantities, and foods rich in calcium and iron — they should be consumed 4 hours apart from the medication. This does not mean completely avoiding them, but rather regulating their timing.

This article is for health awareness and does not replace a doctor’s consultation. If you are experiencing the mentioned symptoms, visit a family doctor or an endocrinologist to conduct the necessary tests.