On top of this, I also came out with Rhodiola Rosea, a herb that is extremely mild, but helps keep energy levels up. I sometimes find when I have a really long day of teaching I need a natural pick me up, this is far healthier than the chocolate bar I usually reach for! They are very mild and even used in the Olympics.
If any of this takes your fancy please do have a look at twentyfirstcenturyherbs.com or give them a ring on 08448460481 and they can always send you out anything. They are highly experienced and very reasonable, but always consult your doctor as well if you are unsure. In fact always consult your doctor just in case!
Blessings of light xx