A goitre is an enlarged or swollen thyroid gland, the butterfly-shaped gland at the base of your neck.
Hypothyroidism occurs when the thyroid gland does not make enough thyroid hormone. Learn about the symptoms, how it's diagnosed and treatment options.
Resting heart rate
Resting heart rate is the number of times your heart beats per minute when you are at rest. Learn why it’s an important sign of your heart health and how to check it.
Fertility awareness (natural family planning)
Fertility awareness is a natural way to avoid getting pregnant. It means not having sex when you are fertile, but it is not as reliable as other forms of contraception. Learn more here.