Thyroid problems linked to increased risk of dementia

Older people with hypothyroidism, also called underactive thyroid, may be at increased risk of developing dementia, according to a new study — and the risk of developing dementia was even higher for people whose condition required thyroid hormone replacement medication.

Hypothyroidism occurs when the thyroid gland doesn’t make enough thyroid hormones, which can slow metabolism. Symptoms include fatigue, weight gain and sensitivity to cold.