According to the American Thyroid Association, adults should begin thyroid screening at age 35, even without symptoms. Those with diagnosed thyroid conditions or high-risk factors need more frequent monitoring.

While diet and lifestyle changes are essential, they may not be sufficient for everyone with hypothyroidism.

In addition to thyroid hormone medication, providers often encourage the following lifestyle changes to help address hypothyroidism (or an underactive thyroid): Diet changes Stress management Regular exercise Adequate sleep Avoiding environmental toxins

Thyroid optimization typically relies on blood tests of three unique hormones: thyroid-stimulating hormone (TSH), triiodothyronine (T3), and thyroxine (T4). In some cases, providers will also assess thyroid antibodies (TPOAb, TgAb), reverse T3, and nutrient levels.