Valerian (Valeriana officinalis, Valerianacea) – Herbal cure for insomnia?

I needed to do some research lately, as one of our friends came down with rapid heartbeat, constant sweating, general weakness and fatigue etc – the typical symptoms of an overactive thyroid. The rapid heartbeat was extremely alarming (around 120 / min all the time) so (among other things – but let’s talk about those [...]