If you've recently been told that your thyroid results are 'normal' then don't be too hasty in dismissing compromised thyroid function as an underlying cause of your excess weight and fatigue. So why is this? Limited funding in the NHS means that thyroid testing is often limited to a look at TSH levels (the hormone produced by the hypothalamus to stimulate the thyroid) and T4 (thyroxine)while the active thyroid hormone is T3 (smething which isn't routinely tested). Many factors can effect the conversion of T4 into T3 in the body and in particular chronic stress can have a big impact. In addition while testing levels of hormones in the blood is a useful guide to thyroid function it's what's happening at a cellular level that is really important and GP tests don't look at this aspect. If you'd like more information on how to assess the true status of your thyroid function then give us a call on 01727 764 832