Sometimes it may feel as if we have no control over our thoughts and emotions. Our minds can take on a life of their own, with no rhyme or reason as to why we're suddenly sad and anxious.

But there are always underlying causes of these mood swings, and with a better understanding of them, you can learn to manage and overcome them.

Like I have, you can connect the dots, determine your underlying triggers, learn to control them and even completely eliminate them over time.

So today I want to talk about thyroid dysfunction. It was one of the underlying issues of my chronic mental illness.

Your thyroid is a small butterfly-shaped gland located in your neck below your Adam’s apple.

It’s one of your most important glands, producing hormones – thyroxine (T4) and triiodothyronine (T3) – which impact the health and functioning of your entire body.

In fact, normal metabolism and energy levels depend on these hormones.

Your thyroid also plays a key role in the optimal health and functioning of your brain. It can impact your cognition, concentration, mood, memory and emotions.

So when your thyroid hormones are out of balance, you can be too, and brain and mental problems can arise.

Your thyroid can either be overactive and produce too much thyroid hormone (hyperthyroidism), or underactive and produce too little thyroid hormone (hypothyroidism).

Hypothyroidism (low thyroid) is much more common, and since I personally struggled with symptoms of hypothyroidism, this post will mostly focus on that.