Underactive thyroid

The clues: Weight gain, dry hair and skin. A tell-tale sign is if you’re losing the outer edge of your eyebrow. “Some medicines can attack your thyroid and cause it to become underactive – notably lithium, for psychiatric disorders, and the heart drug amiodarone, which is used to treat arrhythmias,” says Dr Di Cuffa. The remeDy: your GP will test your thyroid levels and if low, you’ll be prescribed thyroxine to address the balance