Postural hypotension (also known as orthostatic hypotension) is a drop in blood pressure that occurs upon rising from a horizontal position. It is commonly expressed as a feeling of dizziness or lightheadedness, a "head rush", or "standing up too fast".
To do this test, you will need a blood pressure cuff. Lie down and rest for 5 minutes. Take a blood pressure reading while still horizontal. Then, stand up and take another reading.
Normally, your blood pressure should rise 10-20 points. If it drops, particularly by 10 points or more, hypoadrenia is indicated. Generally, the bigger the drop, the greater the adrenal insufficiency.
It should also be mentioned that low blood pressure in general is also an indicator of exhausted adrenals when present in conjunction with the other symptoms of adrenal gland fatigue.
The light should cause your iris to contract, making your pupils (the dark spot in the center of your eye) smaller. Normally, they should stay that way, but if you have adrenal gland fatigue, the iris will be weak and will not be able to hold the contraction, it will either waver between contracted and relaxed, or will contract initially, but then open up after 10-30 seconds.
As with the postural hypotension test, the degree to which you "fail" this test is an indicator of the degree of adrenal insufficiency you are experiencing.
This test has historically been used to indicate severe adrenal fatigue and Addison's Disease, milder cases of adrenal fatigue may not exhibit this sign.